The Parable of the Leaven: What Does It Mean?

by Joshua Andreasen | Founder of Unforsaken

The Parable of the Leaven takes just one sentence in Matthew and two verses in Luke. Is the leaven showing us the quiet spread of God’s kingdom, or does it picture corruption as it does elsewhere? I believe we can answer that by reading the parable in its Gospel setting and paying attention to how Scripture uses symbols.

Reading the Parable in Matthew and Luke

Matthew 13:33 compares the kingdom of heaven to leaven that a woman hid in three measures of meal until the whole batch was leavened. Luke 13:20-21 uses “kingdom of God” for the same comparison.

The parallel helps us understand the two expressions. Matthew characteristically writes “kingdom of heaven,” while Luke usually writes “kingdom of God.” Here they describe the same royal rule, so I see no basis in this wording for dividing them into competing kingdoms or separate programs.

Neither Gospel gives us a direct explanation of this parable as Jesus did for the Sower and the Weeds. We have to work from the comparison and where it appears among the other parables. The way leaven normally works helps us, as does the Bible’s broader teaching about the kingdom. That also means we should be humble about details Scripture leaves unexplained.

On the same day Jesus went out of the house and sat by the sea. And great multitudes were gathered together to Him, so that He got into a boat and sat; and the whole multitude stood on the shore. Then He spoke many things to them in parables, saying: “Behold, a sower went out to sow. And as he sowed, some seed fell by the wayside; and the birds came and devoured them. Some fell on stony places, where they did not have much earth; and they immediately sprang up because they had no depth of earth. But when the sun was up they were scorched, and because they had no root they withered away. And some fell among thorns, and the thorns sprang up and choked them. But others fell on good ground and yielded a crop: some a hundredfold, some sixty, some thirty. He who has ears to hear, let him hear!” And the disciples came and said to Him, “Why do You speak to them in parables?” He answered and said to them, “Because it has been given to you to know the mysteries of the kingdom of heaven, but to them it has not been given. For whoever has, to him more will be given, and he will have abundance; but whoever does not have, even what he has will be taken away from him. Therefore I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand. And in them the prophecy of Isaiah is fulfilled, which says: ‘Hearing you will hear and shall not understand, And seeing you will see and not perceive; For the hearts of this people have grown dull. Their ears are hard of hearing, And their eyes they have closed, Lest they should see with their eyes and hear with their ears, Lest they should understand with their hearts and turn, So that I should heal them.’ But blessed are your eyes for they see, and your ears for they hear; for assuredly, I say to you that many prophets and righteous men desired to see what you see, and did not see it, and to hear what you hear, and did not hear it. “Therefore hear the parable of the sower: When anyone hears the word of the kingdom, and does not understand it, then the wicked one comes and snatches away what was sown in his heart. This is he who received seed by the wayside. But he who received the seed on stony places, this is he who hears the word and immediately receives it with joy; yet he has no root in himself, but endures only for a while. For when tribulation or persecution arises because of the word, immediately he stumbles. Now he who received seed among the thorns is he who hears the word, and the cares of this world and the deceitfulness of riches choke the word, and he becomes unfruitful. But he who received seed on the good ground is he who hears the word and understands it, who indeed bears fruit and produces: some a hundredfold, some sixty, some thirty.” Another parable He put forth to them, saying: “The kingdom of heaven is like a man who sowed good seed in his field; but while men slept, his enemy came and sowed tares among the wheat and went his way. But when the grain had sprouted and produced a crop, then the tares also appeared. So the servants of the owner came and said to him, ‘Sir, did you not sow good seed in your field? How then does it have tares?’ He said to them, ‘An enemy has done this.’ The servants said to him, ‘Do you want us then to go and gather them up?’ But he said, ‘No, lest while you gather up the tares you also uproot the wheat with them. Let both grow together until the harvest, and at the time of harvest I will say to the reapers, “First gather together the tares and bind them in bundles to burn them, but gather the wheat into my barn.”‘” Another parable He put forth to them, saying: “The kingdom of heaven is like a mustard seed, which a man took and sowed in his field, which indeed is the least of all the seeds; but when it is grown it is greater than the herbs and becomes a tree, so that the birds of the air come and nest in its branches.” Another parable He spoke to them: “The kingdom of heaven is like leaven, which a woman took and hid in three measures of meal till it was all leavened.” All these things Jesus spoke to the multitude in parables; and without a parable He did not speak to them, that it might be fulfilled which was spoken by the prophet, saying: “I will open My mouth in parables; I will utter things kept secret from the foundation of the world.”

Matthew 13:1-35

Matthew places the Leaven after the Sower and the Weeds, with the Mustard Seed immediately before it. The Sower describes the different hearts that receive the kingdom word, while the Weeds shows the enemy planting counterfeits in the world. Jesus then moves from a small mustard seed growing into a conspicuous plant to leaven working through a batch of flour.

Reading these parables together, I see growth taking place while opposition and mixture remain. The devil’s activity does not stop the Word from bearing fruit. The sons of the kingdom live in the world alongside the sons of the wicked one until harvest, but God’s kingdom will still reach the outcome He has determined.

The parables revealed truths that had been hidden, but they also exposed the listeners’ dull hearing. They were not simple moral tales whose meaning everyone automatically grasped. Jesus’ words “He who has ears to hear” called for receptive faith.

Then Jesus sent the multitude away and went into the house. And His disciples came to Him, saying, “Explain to us the parable of the tares of the field.” He answered and said to them: “He who sows the good seed is the Son of Man. The field is the world, the good seeds are the sons of the kingdom, but the tares are the sons of the wicked one. The enemy who sowed them is the devil, the harvest is the end of the age, and the reapers are the angels. Therefore as the tares are gathered and burned in the fire, so it will be at the end of this age. The Son of Man will send out His angels, and they will gather out of His kingdom all things that offend, and those who practice lawlessness, and will cast them into the furnace of fire. There will be wailing and gnashing of teeth. Then the righteous will shine forth as the sun in the kingdom of their Father. He who has ears to hear, let him hear! “Again, the kingdom of heaven is like treasure hidden in a field, which a man found and hid; and for joy over it he goes and sells all that he has and buys that field. “Again, the kingdom of heaven is like a merchant seeking beautiful pearls, who, when he had found one pearl of great price, went and sold all that he had and bought it. “Again, the kingdom of heaven is like a dragnet that was cast into the sea and gathered some of every kind, which, when it was full, they drew to shore; and they sat down and gathered the good into vessels, but threw the bad away. So it will be at the end of the age. The angels will come forth, separate the wicked from among the just, and cast them into the furnace of fire. There will be wailing and gnashing of teeth.” Jesus said to them, “Have you understood all these things?” They said to Him, “Yes, Lord.” Then He said to them, “Therefore every scribe instructed concerning the kingdom of heaven is like a householder who brings out of his treasure things new and old.”

Matthew 13:36-52

Now He was teaching in one of the synagogues on the Sabbath. And behold, there was a woman who had a spirit of infirmity eighteen years, and was bent over and could in no way raise herself up. But when Jesus saw her, He called her to Him and said to her, “Woman, you are loosed from your infirmity.” And He laid His hands on her, and immediately she was made straight, and glorified God. But the ruler of the synagogue answered with indignation, because Jesus had healed on the Sabbath; and he said to the crowd, “There are six days on which men ought to work; therefore come and be healed on them, and not on the Sabbath day.” The Lord then answered him and said, “Hypocrite! Does not each one of you on the Sabbath loose his ox or donkey from the stall, and lead it away to water it? So ought not this woman, being a daughter of Abraham, whom Satan has bound–think of it–for eighteen years, be loosed from this bond on the Sabbath?” And when He said these things, all His adversaries were put to shame; and all the multitude rejoiced for all the glorious things that were done by Him. Then He said, “What is the kingdom of God like? And to what shall I compare it? It is like a mustard seed, which a man took and put in his garden; and it grew and became a large tree, and the birds of the air nested in its branches.” And again He said, “To what shall I liken the kingdom of God? It is like leaven, which a woman took and hid in three measures of meal till it was all leavened.” And He went through the cities and villages, teaching, and journeying toward Jerusalem. Then one said to Him, “Lord, are there few who are saved?” And He said to them, “Strive to enter through the narrow gate, for many, I say to you, will seek to enter and will not be able. When once the Master of the house has risen up and shut the door, and you begin to stand outside and knock at the door, saying, ‘Lord, Lord, open for us,’ and He will answer and say to you, ‘I do not know you, where you are from,’ then you will begin to say, ‘We ate and drank in Your presence, and You taught in our streets.’ But He will say, ‘I tell you I do not know you, where you are from. Depart from Me, all you workers of iniquity.’ There will be weeping and gnashing of teeth, when you see Abraham and Isaac and Jacob and all the prophets in the kingdom of God, and yourselves thrust out. They will come from the east and the west, from the north and the south, and sit down in the kingdom of God. And indeed there are last who will be first, and there are first who will be last.”

Luke 13:10-30

In Luke’s account, Jesus healed a woman who had been bent over for eighteen years. The synagogue ruler objected to His doing this on the Sabbath, but Jesus exposed the hypocrisy in that objection. This sufferer was a daughter of Abraham whom Satan had bound, and Jesus said plainly that she ought to be loosed.

Luke calls her condition a “spirit of infirmity,” and Jesus identifies Satan’s bondage in her case. I would not extend that explanation to every disability or illness. Luke records this particular oppression so we can understand the confrontation taking place: Christ used His authority to release a suffering woman whom Satan had held for eighteen years.

His opponents were put to shame, and the crowd rejoiced. Immediately afterward, Jesus asked what the kingdom of God was like and gave the Mustard Seed and Leaven together. He had just shown His authority by freeing one overlooked sufferer, even while religious leaders resisted Him.

That sequence in Luke helps me understand the leaven as a hopeful comparison. Jesus’ ministry may look small in this scene, but we have just seen God’s liberating authority at work in the face of opposition. The kingdom would reach its appointed end despite that opposition.

What Leaven and Three Measures Meant

Ancient leaven was commonly a piece of fermented dough kept from an earlier batch. When it was mixed into fresh flour and water, the microorganisms it contained caused fermentation in the new dough. It worked much like a sourdough starter, rather than a packet of modern commercial yeast.

A small portion could work through a much larger mass of dough, although someone looking at it from outside would not immediately see the change. The influence spread over time. Jesus drew His comparison from that familiar work in the kitchen.

We don’t need to claim that fermentation can never be interrupted to explain why the kingdom will succeed. Temperature and moisture affect the process, and so do salt and other conditions in the dough. My confidence in the kingdom rests on the King, not on a claim that bread chemistry works like irresistible magic.

The Greek word saton refers to a dry measure related to the Hebrew seah, and three seahs amount to roughly one ephah. Ancient measures varied from place to place, and modern reconstructions vary too. Even with those uncertainties, this was clearly enough flour to feed many people.

I would hesitate to call it exactly fifty pounds. A measure of volume does not give us one fixed weight of flour, since the type of flour and how tightly it is packed affect the weight. Moisture makes a difference too, and estimates depend on the size assigned to the ancient unit. “A very large batch” gives us the point without claiming a precision we don’t have.

That large quantity helps us see the contrast Jesus was making. The leaven was a comparatively small portion hidden in the flour, yet it worked through far more dough than would be needed for an ordinary loaf.

When the LORD appeared visibly to Abraham, two angels accompanied Him. Genesis 19 identifies the two who continued to Sodom as angels. The visible LORD was a preincarnate appearance of the eternal Son, a Christophany. Abraham told Sarah to prepare three measures of fine meal for these visitors. That same generous quantity for hospitality may have sounded familiar to Jesus’ hearers.

Then the LORD appeared to him by the terebinth trees of Mamre, as he was sitting in the tent door in the heat of the day. So he lifted his eyes and looked, and behold, three men were standing by him; and when he saw them, he ran from the tent door to meet them, and bowed himself to the ground, and said, “My Lord, if I have now found favor in Your sight, do not pass on by Your servant. Please let a little water be brought, and wash your feet, and rest yourselves under the tree. And I will bring a morsel of bread, that you may refresh your hearts. After that you may pass by, inasmuch as you have come to your servant.” They said, “Do as you have said.” So Abraham hurried into the tent to Sarah and said, “Quickly, make ready three measures of fine meal; knead it and make cakes.” And Abraham ran to the herd, took a tender and good calf, gave it to a young man, and he hastened to prepare it. So he took butter and milk and the calf which he had prepared, and set it before them; and he stood by them under the tree as they ate.

Genesis 18:1-8

The similar wording can help me picture the abundance of bread being prepared, but I would stop short of making it an explanation Jesus Himself gave. He did not cite Genesis 18 or call the meal sacred. It may provide background without giving us an inspired interpretation of the parable.

Gideon prepared an ephah of flour in Judges 6, an amount equivalent to three seahs, although the NKJV does not say “three measures” there. Likewise, 1 Samuel 1:24 in the Masoretic Hebrew describes Hannah bringing three bulls and one ephah of flour. It does not say she brought three measures of flour. These similar quantities can help with the background, but they do not give us a hidden code for interpreting Jesus’ parable.

Why Context Must Control the Symbol

An image can mean different things in different passages. Christ is the Lion of Judah, while the devil is compared to a lion prowling for prey. Water can picture cleansing or life, but elsewhere it may represent chaos or judgment. Sometimes it is simply something to drink. We have to read the passage before assigning a doctrinal meaning to the object.

Leaven’s ability to spread makes it a useful warning about the influence of hypocrisy, sin, or false teaching. But that same action can picture the kingdom’s hidden reach. We need to follow the immediate comparison to see whether its influence is being presented positively or negatively.

I begin with what the speaker actually compares and the action he emphasizes. Then I look at how the saying fits the material around it, while also considering explanations Scripture gives elsewhere. If I assign each symbol a fixed meaning before reading the passage, I can create contradictions that the text never intended.

At Passover, Israel removed leaven and ate unleavened bread. Removing the leaven first reflected the urgency of leaving Egypt and then became part of the feast that remembered that departure. Paul later used the Passover imagery to address church discipline and sincere Christian living.

‘So this day shall be to you a memorial; and you shall keep it as a feast to the LORD throughout your generations. You shall keep it as a feast by an everlasting ordinance. Seven days you shall eat unleavened bread. On the first day you shall remove leaven from your houses. For whoever eats leavened bread from the first day until the seventh day, that person shall be cut off from Israel. On the first day there shall be a holy convocation, and on the seventh day there shall be a holy convocation for you. No manner of work shall be done on them; but that which everyone must eat–that only may be prepared by you. So you shall observe the Feast of Unleavened Bread, for on this same day I will have brought your armies out of the land of Egypt. Therefore you shall observe this day throughout your generations as an everlasting ordinance. In the first month, on the fourteenth day of the month at evening, you shall eat unleavened bread, until the twenty-first day of the month at evening. For seven days no leaven shall be found in your houses, since whoever eats what is leavened, that same person shall be cut off from the congregation of Israel, whether he is a stranger or a native of the land. You shall eat nothing leavened; in all your dwellings you shall eat unleavened bread.'”

Exodus 12:14-20

In the meantime, when an innumerable multitude of people had gathered together, so that they trampled one another, He began to say to His disciples first of all, “Beware of the leaven of the Pharisees, which is hypocrisy. For there is nothing covered that will not be revealed, nor hidden that will not be known. Therefore whatever you have spoken in the dark will be heard in the light, and what you have spoken in the ear in inner rooms will be proclaimed on the housetops.

Luke 12:1-3

Jesus identified the Pharisees’ leaven as hypocrisy, showing how hidden pretense spreads even though it will finally be exposed. Elsewhere He warned about the teaching shared by the Pharisees and Sadducees, and He also spoke of the leaven of Herod.

Those uses give the corruption interpretation of Matthew 13 a good reason to be heard. I would take that negative association seriously without deciding what this parable means before reading its own context.

Leviticus generally forbids leaven in grain offerings burned on the altar, but that restriction did not apply to every offering. A thanksgiving peace offering included leavened bread, and the Feast of Weeks required two wave loaves baked with leaven.

‘When anyone offers a grain offering to the LORD, his offering shall be of fine flour. And he shall pour oil on it, and put frankincense on it. He shall bring it to Aaron’s sons, the priests, one of whom shall take from it his handful of fine flour and oil with all the frankincense. And the priest shall burn it as a memorial on the altar, an offering made by fire, a sweet aroma to the LORD. The rest of the grain offering shall be Aaron’s and his sons’. It is most holy of the offerings to the LORD made by fire. ‘And if you bring as an offering a grain offering baked in the oven, it shall be unleavened cakes of fine flour mixed with oil, or unleavened wafers anointed with oil. But if your offering is a grain offering baked in a pan, it shall be of fine flour, unleavened, mixed with oil. You shall break it in pieces and pour oil on it; it is a grain offering. ‘If your offering is a grain offering baked in a covered pan, it shall be made of fine flour with oil. You shall bring the grain offering that is made of these things to the LORD. And when it is presented to the priest, he shall bring it to the altar. Then the priest shall take from the grain offering a memorial portion, and burn it on the altar. It is an offering made by fire, a sweet aroma to the LORD. And what is left of the grain offering shall be Aaron’s and his sons’. It is most holy of the offerings to the LORD made by fire. ‘No grain offering which you bring to the LORD shall be made with leaven, for you shall burn no leaven nor any honey in any offering to the LORD made by fire. As for the offering of the firstfruits, you shall offer them to the LORD, but they shall not be burned on the altar for a sweet aroma. And every offering of your grain offering you shall season with salt; you shall not allow the salt of the covenant of your God to be lacking from your grain offering. With all your offerings you shall offer salt.

Leviticus 2:1-13

‘This is the law of the sacrifice of peace offerings which he shall offer to the LORD: If he offers it for a thanksgiving, then he shall offer, with the sacrifice of thanksgiving, unleavened cakes mixed with oil, unleavened wafers anointed with oil, or cakes of blended flour mixed with oil. Besides the cakes, as his offering he shall offer leavened bread with the sacrifice of thanksgiving of his peace offering. And from it he shall offer one cake from each offering as a heave offering to the LORD. It shall belong to the priest who sprinkles the blood of the peace offering.

Leviticus 7:11-14

‘And you shall count for yourselves from the day after the Sabbath, from the day that you brought the sheaf of the wave offering: seven Sabbaths shall be completed. Count fifty days to the day after the seventh Sabbath; then you shall offer a new grain offering to the LORD. You shall bring from your dwellings two wave loaves of two-tenths of an ephah. They shall be of fine flour; they shall be baked with leaven. They are the firstfruits to the LORD. And you shall offer with the bread seven lambs of the first year, without blemish, one young bull, and two rams. They shall be as a burnt offering to the LORD, with their grain offering and their drink offerings, an offering made by fire for a sweet aroma to the LORD. Then you shall sacrifice one kid of the goats as a sin offering, and two male lambs of the first year as a sacrifice of a peace offering. The priest shall wave them with the bread of the firstfruits as a wave offering before the LORD, with the two lambs. They shall be holy to the LORD for the priest. And you shall proclaim on the same day that it is a holy convocation to you. You shall do no customary work on it. It shall be a statute forever in all your dwellings throughout your generations.

Leviticus 23:15-21

These commands do not turn leaven into a symbol of righteousness. They do show that the ingredient itself was not sinful, since God accepted actual leaven in these worship settings. That keeps me from assuming leaven must always mean evil. We still need to hear what Jesus was comparing in this parable.

The positive reading focuses on leaven spreading unseen through the dough until its work is complete. That fits the neighboring Mustard Seed, where a small beginning leads to a large result. It also fits Luke’s account of Jesus freeing the woman just before He gave the parable. On this reading, Jesus was comparing the kingdom to that continuing work of leaven until completion.

Those who take the negative reading begin with leaven’s common use as a symbol of corruption. They also point to the enemy’s work and the mixture in the field in Matthew 13. We certainly do find false teaching in later visible Christianity. Some interpreters also see the Mustard Seed’s tree-like growth as abnormal and understand its birds to represent evil.

I believe the positive reading fits the parable best, while the surrounding teaching keeps us from taking it too far. The kingdom’s influence works quietly and reaches far beyond its small beginning. But being touched by visible Christian influence does not mean a person has been born again. The Sower and the Weeds give us no room to assume that everyone has.

I share the opposing reading’s concern about corruption. What I find less persuasive is making a negative meaning for the symbol govern the comparison when Jesus directly likens the kingdom to leaven completing its work.

Hidden Influence and a Certain Outcome

In both Matthew and Luke, the verb describing what the woman did means to hide or conceal within. The woman worked the leaven into the flour until the active portion could no longer be seen as a separate lump.

There is no need to read deception into that hiding. A baker puts starter inside the dough because it needs that contact to work through it. Jesus was drawing attention to an effect that could begin without attracting public notice.

The kingdom arrived through Jesus’ humble ministry, without the immediate political spectacle many expected. He taught the truth and healed the sick, and demons were subject to His authority. He also called disciples to become His witnesses and sent them into the world after His death and resurrection. Rulers and religious elites could judge His work weak, but God’s rule was already active.

I don’t see a reason to make the woman stand for the church or Israel. Jesus did not identify her with wisdom, nor did He say she represented false religion or a corrupt institution. She carried out the familiar household task that made the comparison understandable.

Jesus took the comparison all the way to the whole batch being leavened. The result did not remain endlessly uncertain. What began hidden eventually affected all the measured meal, pointing us toward an appointed outcome.

This does not require the postmillennial conversion of every person or institution before Jesus returns. Matthew 13 leaves the weeds until harvest and describes a net containing both good and bad. Scripture also places apostasy and persecution before Christ’s bodily return, along with the Antichrist and the Tribulation.

“All” first describes the flour in the parable. The corresponding truth about the kingdom is that God will thoroughly and certainly accomplish His work within the sphere He appoints. Jesus was not promising universal salvation or a morally perfect world in this present age.

Both Matthew and Luke put the Mustard Seed immediately before the Leaven. One comparison follows a tiny seed as it becomes a large garden plant with branches. The other follows hidden starter as it affects the entire batch of dough.

Together they help us see how much more the kingdom becomes than its beginning might lead us to expect. The mustard plant’s growth becomes visible, while the leaven works inside the dough. People cannot control that growth and may not even notice it for a time, but the result far exceeds their first impression.

I would not press the pairing until every detail had to match. The man and woman belong to different ordinary household scenes. The birds do not have to correspond to the flour in a single chart of symbols.

Just before this pair in Matthew comes the Weeds, which Jesus did explain. He identified the field as the world and distinguished the good seed, the sons of the kingdom, from the tares, the sons of the wicked one. The enemy was the devil, and the harvest was the end of the age.

So the kingdom truly advances while counterfeit religion and hostile influence are still at work. Its visible reach does not mean everyone has been born again. Church history records faithful witness, but it also includes shallow professions of faith. It also records cultural borrowing and compromise, as well as times of persecution and reform.

I can trust the King to succeed without pretending the enemy has stopped working. Christ will make the final separation. Remembering that keeps our confidence in His kingdom from becoming naive.

The Kingdom Now and at Christ’s Return

During His earthly ministry, Jesus was the King standing among them. Disease and demons obeyed Him, as did nature itself, and He showed His authority over sin and death. The gospel announces His death and resurrection and calls people to repent and believe. Those who receive Him become a people who submit to His lordship.

Every believer has been transferred into the Son’s kingdom and lives under His saving rule. Churches make that kingdom life visible, however imperfectly, as they bear witness to Christ and teach His commands. They baptize disciples and remember His sacrifice in this present age.

We can recognize that present rule without claiming every kingdom promise has already been fulfilled. Jesus is seated at the Father’s right hand and rules now, but the earth has not yet entered the literal thousand-year reign promised after His return.

Jesus will gather His church before the seven-year Tribulation. When that period is over, He will return bodily in glory to defeat the Antichrist and deliver Israel. He will reign for a literal thousand years, with Messiah’s promised government openly established throughout the world.

I would not use the Leaven to turn that future reign into gradual social improvement. The prophets describe a real throne with nations living under the returning King. Their promises concern Israel and look ahead to peace following judgment, as well as a restored creation.

The King who is at work now is the same King who will reign openly. His hidden work does not cancel what He has promised for the future. The small beginning should instead help us wait patiently as God’s appointed sequence unfolds.

Now when He was asked by the Pharisees when the kingdom of God would come, He answered them and said, “The kingdom of God does not come with observation; nor will they say, ‘See here!’ or ‘See there!’ For indeed, the kingdom of God is within you.” Then He said to the disciples, “The days will come when you will desire to see one of the days of the Son of Man, and you will not see it. And they will say to you, ‘Look here!’ or ‘Look there!’ Do not go after them or follow them. For as the lightning that flashes out of one part under heaven shines to the other part under heaven, so also the Son of Man will be in His day. But first He must suffer many things and be rejected by this generation. And as it was in the days of Noah, so it will be also in the days of the Son of Man: They ate, they drank, they married wives, they were given in marriage, until the day that Noah entered the ark, and the flood came and destroyed them all. Likewise as it was also in the days of Lot: They ate, they drank, they bought, they sold, they planted, they built; but on the day that Lot went out of Sodom it rained fire and brimstone from heaven and destroyed them all. Even so will it be in the day when the Son of Man is revealed. “In that day, he who is on the housetop, and his goods are in the house, let him not come down to take them away. And likewise the one who is in the field, let him not turn back. Remember Lot’s wife. Whoever seeks to save his life will lose it, and whoever loses his life will preserve it. I tell you, in that night there will be two men in one bed: the one will be taken and the other will be left. Two women will be grinding together: the one will be taken and the other left. Two men will be in the field: the one will be taken and the other left.” And they answered and said to Him, “Where, Lord?” So He said to them, “Wherever the body is, there the eagles will be gathered together.”

Luke 17:20-37

Jesus was answering Pharisees who wanted to know when the kingdom would come. The NKJV reads, “the kingdom of God is within you,” while the Greek expression can also mean “in your midst” or “among you.” Who He was speaking to helps me understand His meaning. He was not telling hostile Pharisees that God’s saving rule filled their hearts. The King stood among them with His authority, and they failed to recognize Him.

Jesus then told His disciples about the future day when the Son of Man would be revealed in sudden, visible judgment. The passage speaks both of the King already present and of His future public appearing.

We also need to distinguish the church from the kingdom. The church consists of born-again Jews and Gentiles united to Christ during this age. The kingdom describes God’s royal rule and the King’s realm throughout His redemptive plan. They overlap, but the words do not mean the same thing.

The church lives under the King and proclaims His kingdom without taking Israel’s place. It will not conquer the nations politically before Christ returns, nor does it fulfill every promise about Israel’s land and throne.

There is a further distinction between the church and visible Christendom, the wider world of people and institutions identifying as Christian. Some within that wider world have never been born again. I cannot take the leaven spreading through the meal to mean that every cultural artifact with a Christian label belongs to Christ’s saving body.

Living Under the Kingdom’s Influence

New birth and the indwelling Holy Spirit truly change a believer from within. Scripture also calls us to renew our minds and put off sinful conduct. As we walk in the Spirit, our lives are to bear His fruit.

That inward change resembles leaven’s effect, so I think it offers a fitting application. But I would keep the application distinct from the main interpretation. Jesus explicitly compared the leaven to the kingdom, rather than to the growth in holiness of an individual believer.

Spiritual growth can be gradual without happening automatically like fermentation. We actively trust and obey God, and when we sin we need to repent and pray. Learning Scripture and serving others are part of that life of dependence on the Spirit. Grace trains our wills instead of bypassing them.

I can take encouragement from Jesus’ kingdom comparison without setting aside His warnings about corrupting influence. Hypocrisy and tolerated sexual sin can spread through a community. Legalistic teaching and other false doctrine can spread in the same way.

It is actually reported that there is sexual immorality among you, and such sexual immorality as is not even named among the Gentiles–that a man has his father’s wife! And you are puffed up, and have not rather mourned, that he who has done this deed might be taken away from among you. For I indeed, as absent in body but present in spirit, have already judged (as though I were present) him who has so done this deed. In the name of our Lord Jesus Christ, when you are gathered together, along with my spirit, with the power of our Lord Jesus Christ, deliver such a one to Satan for the destruction of the flesh, that his spirit may be saved in the day of the Lord Jesus. Your glorying is not good. Do you not know that a little leaven leavens the whole lump? Therefore purge out the old leaven, that you may be a new lump, since you truly are unleavened. For indeed Christ, our Passover, was sacrificed for us. Therefore let us keep the feast, not with old leaven, nor with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.

1 Corinthians 5:1-8

Stand fast therefore in the liberty by which Christ has made us free, and do not be entangled again with a yoke of bondage. Indeed I, Paul, say to you that if you become circumcised, Christ will profit you nothing. And I testify again to every man who becomes circumcised that he is a debtor to keep the whole law. You have become estranged from Christ, you who attempt to be justified by law; you have fallen from grace. For we through the Spirit eagerly wait for the hope of righteousness by faith. For in Christ Jesus neither circumcision nor uncircumcision avails anything, but faith working through love. You ran well. Who hindered you from obeying the truth? This persuasion does not come from Him who calls you. A little leaven leavens the whole lump. I have confidence in you, in the Lord, that you will have no other mind; but he who troubles you shall bear his judgment, whoever he is. And I, brethren, if I still preach circumcision, why do I still suffer persecution? Then the offense of the cross has ceased. I could wish that those who trouble you would even cut themselves off!

Galatians 5:1-12

Paul uses “a little leaven leavens the whole lump” in two negative settings. In Corinth, he required the church to deal with open immorality. “Deliver such a one to Satan” meant removing the unrepentant man from the church’s protected fellowship and returning him to the outside world where Satan operates. That severe action was intended to bring him to repentance, not to take revenge. Paul later urged restoration and comfort when discipline had brought sorrow.

In Galatia, believers had to reject teaching that made circumcision and law-keeping conditions of justification. “Fallen from grace” describes abandoning grace as the basis of justification and trying to be declared righteous by law. I understand Paul to be warning about that false path, not saying a truly born-again person can become unborn. Christ alone justifies. Adding the law as a requirement for salvation abandons the very principle it supposedly supplements.

Confidence in the kingdom’s advance leaves room for church discipline and careful attention to doctrine. The King does not ask us to accept corruption and call it growth.

The disciples were commanded to bear witness even though they could not manufacture the kingdom. Wherever they went, they preached Christ and taught Scripture. As people believed, they formed churches and taught them to care for those in need. Trusting God to produce growth enabled them to keep going through persecution.

This parable encourages me to keep serving faithfully when I cannot see much happening. God may use a conversation or a faithful sermon in work whose full extent is still hidden from us. A translated Bible can serve His purpose, as can patient discipleship within a family. Even an unnoticed act of obedience may be part of His larger work.

The message we carry is still the gospel of Jesus Christ. He is the eternal Son, fully God and fully man, born of a virgin and completely sinless. Wicked men physically tortured, punished, and killed Him. Jesus willingly bore that real punishment for our sins in His innocent body and shed His blood. He died and was buried, then rose bodily. The Father did not punish or curse Jesus. He did not abandon Him, strike Him, bruise Him, or pour wrath on Him.

Christ died for the whole world, and God’s offer is genuine even though people can resist it. Everyone who repents and believes is forgiven and justified. They are born again and made new. The Holy Spirit indwells and seals them, and they are eternally secure. That security does not excuse lawlessness, and a superficial profession does not prove new birth. The life Christ gives bears obedient fruit under the King.

For more of the surrounding kingdom teaching, read the studies on the Mustard Seed, the Weeds and Tares, and the Kingdom of Heaven and the Kingdom of God.

My Final Thoughts

I believe both Gospel settings give us reason to trust that God’s kingdom will reach every part of the work He has appointed, however quietly it begins. That helps me remain patient when faithful work seems small, without trying to manufacture the growth myself. Confidence must go together with care for what enters our lives and churches, since Jesus and Paul also warn about leaven that corrupts. The outcome belongs to the risen Christ, and His promises of a future reign will stand.