When I see a rainbow, Genesis gives me a definite promise to remember: God will never again destroy all flesh and the earth by a flood. He gave that sign after judging a world filled with violence, and He gave it knowing that human beings would still sin. Its beauty should draw our attention to His faithfulness without making us forget either the judgment that came before it or the judgment Scripture says is still ahead.
The Rainbow and the World After the Flood
Genesis introduces Noah in a world where human wickedness had spread unchecked. God saw both the violence people committed and the evil intentions behind it, and He announced what He would do.
Then the LORD saw that the wickedness of man was great in the earth, and that every intent of the thoughts of his heart was only evil continually. And the LORD was sorry that He had made man on the earth, and He was grieved in His heart. So the LORD said, “I will destroy man whom I have created from the face of the earth, both man and beast, creeping thing and birds of the air, for I am sorry that I have made them.” But Noah found grace in the eyes of the LORD.
Violence had spread across the earth because people had corrupted their ways (Genesis 6:11-13). Genesis describes the intentions of their hearts as continually evil and tells us that their wickedness grieved God. He announced judgment against the world He had made, while Noah found grace in His eyes.
Noah was just, walked with God, and was blameless in his generation (Genesis 6:9). Genesis does not make him sinless or suggest that building the ark earned God’s favor. God warned him and gave him instructions for his preservation, and Noah believed Him. Paul later describes that obedience in Hebrews as faith responding to a warning about things Noah had not yet seen.
I understand this as a global flood. The judgment concerns the earth and all flesh, and the covenant afterward promises that the same worldwide destruction will not happen again. If the flood concerned only one region, later regional floods would be difficult to reconcile with that promise. God preserved Noah’s household and the creatures with them in the ark, then told them when they could leave. The study on Noah and the Ark follows that account in greater detail.
Then Noah built an altar to the LORD, and took of every clean animal and of every clean bird, and offered burnt offerings on the altar. And the LORD smelled a soothing aroma. Then the LORD said in His heart, “I will never again curse the ground for man’s sake, although the imagination of man’s heart is evil from his youth; nor will I again destroy every living thing as I have done. “While the earth remains, Seedtime and harvest, Cold and heat, Winter and summer, And day and night Shall not cease.”
Noah’s first recorded action after leaving the ark was to build an altar and offer clean animals and birds to the LORD. He and his family began their life in the world after the flood by worshiping the God who had preserved them. God accepted the offering and declared that He would not again destroy every living thing as He had done.
God made that commitment knowing that the imagination of man’s heart remained evil from youth. The flood had judged wickedness, but surviving it did not give a person a new heart. Noah and his descendants still needed God’s grace and the Savior He would send.
God also promised the continuing order on which ordinary life depends. Farmers could plant with an expectation of harvest, and families could live through the succession of seasons and days. The words “while the earth remains” give the promise its setting. God would preserve life in this world without promising that its fallen condition would last forever.
Genesis 9 then records His blessing upon Noah’s family, the responsibilities He gave them, and the covenant He established with them and the earth.
And God said: “This is the sign of the covenant which I make between Me and you, and every living creature that is with you, for perpetual generations: I set My rainbow in the cloud, and it shall be for the sign of the covenant between Me and the earth. It shall be, when I bring a cloud over the earth, that the rainbow shall be seen in the cloud; and I will remember My covenant which is between Me and you and every living creature of all flesh; the waters shall never again become a flood to destroy all flesh. The rainbow shall be in the cloud, and I will look on it to remember the everlasting covenant between God and every living creature of all flesh that is on the earth.”
A covenant is a solemn commitment with stated terms. God Himself established this covenant, addressing Noah and his sons, their descendants, and every living creature with them. He repeatedly included all flesh and the earth. His promise extended beyond Noah’s lifetime to every future generation, rather than belonging privately to one man or one nation (Genesis 9:8-11).
The promise was specific: floodwaters would never again cut off all flesh or destroy the earth. Rivers can still overflow, storms can devastate coastlines, and families can lose everything in a flood. I would not tell a suffering family that the rainbow guaranteed their town’s safety. Those disasters are terrible, but they are not another worldwide destruction of the kind God ruled out.
God appointed the rainbow in the cloud as the visible sign of His commitment for perpetual generations. The Hebrew word ot means sign. Here the sign directs our attention to a promise God had already made; it neither makes Him faithful nor supplies power to His words. God explains what the rainbow signifies, so we do not need to invent its message.
God also said that He would see the rainbow and remember His covenant. He was not describing an all-knowing God recovering forgotten information. Earlier, God “remembered Noah” and acted to bring the floodwaters down. Later, He remembered His covenant as Israel groaned in bondage and acted to deliver them. In both accounts, remembering leads to His carrying out a commitment.
When He says He will look on the rainbow and remember, He assures us that He honors the covenant He established. God’s promise holds even when people do not understand the sign. I can remember His promise when I see the sign because He remains faithful to His own word.
Every nation lives in the world this promise preserves, including people who do not acknowledge its Creator. That worldwide preservation differs from God’s later commitments to Abraham, Israel at Sinai, and David. The New Covenant, promised to Israel and Judah, also has its own recipients and terms. These covenants belong together in God’s work, but we cannot exchange their promises as though each said the same thing.
Including animals in the covenant helps explain what God was giving: continued life in the present world. Someone can enjoy the seasons, raise a family, and see many rainbows without receiving forgiveness and eternal life. Salvation requires repentance and faith in Jesus Christ. The study on the Noahic Covenant examines the covenant’s provisions more fully.
Covenant Preservation and Human Accountability
God’s pledge did not free Noah’s descendants from responsibility for their conduct. He blessed them and commanded them to multiply and fill the earth. He permitted animals as food while forbidding them to eat flesh with its life, which He identified with its blood. Receiving His provision did not give them the right to treat life as their own property to use however they pleased (Genesis 9:1-4).
His demand for an accounting of human lifeblood was especially serious. God grounded the punishment of murder in the fact that He made man in His image. The fall and the flood had not erased that image or made human life disposable. Murder attacks a fellow human being who bears the Creator’s image, and the passage requires human judgment upon the murderer (Genesis 9:5-6).
This provides a foundation for public justice and capital punishment, rather than permission for personal revenge. Lawful authorities must establish guilt truthfully and administer justice without favoritism. They must weigh evidence honestly and guard against wrongful convictions and abuse of power. Those responsibilities follow from the reason God gave for the command: human beings bear His image, and their lives must be protected.
I cannot assign someone’s worth by intelligence, health, age, ancestry, or usefulness. An unborn child, a disabled person, and an elderly neighbor all bear God’s image. So does someone whose conduct I rightly oppose. We must protect life and hold wrongdoing accountable without deciding that an unpopular person has ceased to be human.
Genesis 9 places these duties within the world God promised to preserve. It does not give an exhaustive civil code for every later nation, so we must read its commands alongside the rest of Scripture. God’s patience gives no one permission to disregard His moral authority. The same Lord who ruled out another worldwide flood required people to honor life and answer for bloodshed.
What the Bow in the Cloud Means
Genesis calls the sign God’s bow in the cloud. The Hebrew word qeshet can also refer to a bow used as a weapon. Psalm 7 uses it in a description of God’s judgment.
God is a just judge, And God is angry with the wicked every day. If he does not turn back, He will sharpen His sword; He bends His bow and makes it ready. He also prepares for Himself instruments of death; He makes His arrows into fiery shafts.
In Psalm 7, God sharpens a sword, bends His bow, and prepares arrows against the unrepentant wicked. The surrounding words identify a weapon and its purpose. Genesis 9 instead identifies the bow in the cloud as the sign of a promise concerning floodwaters. The word’s use in both passages does not bring every detail of the psalm into the rainbow’s meaning.
Some explanations picture God hanging up a war bow or aiming its arrow toward heaven and ultimately toward His Son. Genesis says none of that. God did not surrender His right to judge, and the passage does not describe an arrow or identify a heavenly target. I would not use an imagined weapon to teach that the Father later directed His punishment against Jesus.
The bow in the cloud forms as sunlight bends on entering water droplets, reflects inside them, and bends again as it leaves. That bending is called refraction. The colors bend by slightly different amounts, spreading sunlight into a visible spectrum through a process called dispersion. We see the colors from droplets that send light toward our eyes at particular angles. Usually we see only part of the circle, though the full circle can sometimes be visible from an elevated viewpoint. The Met Office’s explanation of rainbows describes these processes.
Explaining how light and water produce a rainbow does not explain away God’s use of it. He created light, water, the atmosphere, and the eyes with which we see. Genesis tells us why He appointed this phenomenon as a sign. We can understand its physical formation and still receive the meaning He attached to it.
Nor does Genesis settle whether a rainbow had been visible before the flood. “I set My rainbow” identifies God’s appointment of the sign; the passage does not require us to conclude that light and water had previously behaved differently. The related study on the literal six days of creation considers the Creator’s work at the beginning.
The rainbow signifies God’s mercy toward a world whose people continue to sin. It does not announce that their sin has become acceptable. His widely shared kindness is sometimes called common grace: He supplies rain, food, and the stable conditions in which human life can continue. People who reject Him receive real benefits from those gifts, though the gifts do not mean they are saved.
In the world God preserved, Abraham would be called, Israel would become a nation, the prophets would speak, and the Messiah would come. The gospel would then be carried to the nations. God’s patience allows human life and His work of redemption to continue, while every generation remains responsible to respond to Him.
Rainbow Glory in Isaiah, Ezekiel, and Revelation
Isaiah does not describe a visible rainbow in the following passage. He recalls the promise about Noah’s waters to assure Zion of God’s enduring mercy after judgment.
“For a mere moment I have forsaken you, But with great mercies I will gather you. With a little wrath I hid My face from you for a moment; But with everlasting kindness I will have mercy on you,” Says the LORD, your Redeemer. “For this is like the waters of Noah to Me; For as I have sworn That the waters of Noah would no longer cover the earth, So have I sworn That I would not be angry with you, nor rebuke you. For the mountains shall depart And the hills be removed, But My kindness shall not depart from you, Nor shall My covenant of peace be removed,” Says the LORD, who has mercy on you.
The LORD recalls His sworn commitment concerning the flood to assure Zion that His kindness and covenant of peace will not depart. Mountains and hills may be removed, but His promised mercy will stand. The people could trust the restoration He announced because the same God had kept His earlier word.
Isaiah’s comparison does not put every later promise inside the covenant with Noah or erase the particular future God announces for Zion. The same reliable God makes both promises, and each has its own terms.
Ezekiel received a vision of the LORD’s glory while living among the exiles, far from Jerusalem. Above the living creatures and the expanse, he saw the likeness of a throne:
And above the firmament over their heads was the likeness of a throne, in appearance like a sapphire stone; on the likeness of the throne was a likeness with the appearance of a man high above it. Also from the appearance of His waist and upward I saw, as it were, the color of amber with the appearance of fire all around within it; and from the appearance of His waist and downward I saw, as it were, the appearance of fire with brightness all around. Like the appearance of a rainbow in a cloud on a rainy day, so was the appearance of the brightness all around it. This was the appearance of the likeness of the glory of the LORD. So when I saw it, I fell on my face, and I heard a voice of One speaking.
A likeness of a man was seated on the throne, surrounded by fire-like brightness that Ezekiel compared to a rainbow in a cloud on a rainy day. He repeatedly used words such as “likeness” and “appearance” to describe what he saw. These comparisons convey a vision of God’s glory, without reducing God to an ordinary human body or an atmospheric event.
Ezekiel fell on his face and heard the One speaking. The rainbow-like brightness formed part of the LORD’s radiant majesty. God’s covenant faithfulness fits that image, but Ezekiel does not explain each color or repeat the terms of Genesis 9. We should receive his comparison without assigning a separate hidden doctrine to every feature.
John also saw a rainbow in a vision of God’s throne. Revelation places it in a scene of heavenly worship before the Lamb opens the seals.
Immediately I was in the Spirit; and behold, a throne set in heaven, and One sat on the throne. And He who sat there was like a jasper and a sardius stone in appearance; and there was a rainbow around the throne, in appearance like an emerald.
The One seated on the throne appeared like jasper and sardius, while the rainbow around Him appeared like an emerald. John saw elders on their thrones, lamps of fire, living creatures, and a sea like glass. Lightning, thunder, and voices came from the throne (Revelation 4:4-6). The rainbow was part of this display of God’s glory and authority.
I do not read this rainbow as a promise that God will overlook evil. The following chapters describe judgments proceeding under the Lamb’s authority. The God who keeps His covenant concerning the flood also judges righteously. His mercy and justice both express the character of the same faithful Lord.
Later, during the trumpet judgments, John saw rainbow imagery associated with a mighty messenger coming down from heaven.
I saw still another mighty angel coming down from heaven, clothed with a cloud. And a rainbow was on his head, his face was like the sun, and his feet like pillars of fire.
The mighty angel had a rainbow on his head and was clothed with a cloud. His face shone like the sun, and his feet resembled pillars of fire. Holding an open little book, he stood with one foot on the sea and the other on the land. Seven thunders answered his cry, but a voice from heaven forbade John to write what he heard (Revelation 10:2-4). Their message has not been given to us.
Some readers identify this messenger as Christ because his appearance resembles descriptions of divine glory. I understand him as a mighty angel sent with God’s authority. John calls him “another mighty angel,” and the messenger swears by the eternal Creator of heaven, earth, and sea (Revelation 10:5-6). Taken together, those features lead me to distinguish the messenger from the One whose purpose he announces. John Walvoord discusses both readings and explains why he understands the messenger as an angel.
A rainbow is fitting imagery for a messenger of the Creator who keeps His word. The angel’s oath announces an end to the delay: in the days of the seventh trumpet, God’s mystery will be finished as He declared to His prophets (Revelation 10:5-7). Here a mystery is a purpose made known through God’s revelation. It is not a puzzle we can solve by guessing what the seven thunders said. God will carry out the purpose He has revealed.
A different kind of bow appears earlier, when the first seal is opened. The setting identifies it as a weapon of conquest rather than a rainbow.
Now I saw when the Lamb opened one of the seals; and I heard one of the four living creatures saying with a voice like thunder, “Come and see.” And I looked, and behold, a white horse. He who sat on it had a bow; and a crown was given to him, and he went out conquering and to conquer.
The rider of the white horse carries a bow, receives a crown, and goes out conquering. Reading these as future events, I understand him as the counterfeit conqueror associated with the Antichrist. War, scarcity, and death follow with the other riders (Revelation 6:3-8). His conquest begins a period of terrible judgment before Christ’s true return.
The English word “bow” can make these passages seem more alike than they are. The rider carries a weapon of conquest, not the covenant sign from Genesis. John mentions no arrows, leading some readers to propose bloodless conquest or an initial appearance of peace. An omitted detail cannot establish how the rider conquers. John explicitly describes conquest and the disasters that follow it.
The Days of Noah and the Judgment Still Ahead
The rainbow’s promise rules out another global flood, but Jesus warned of judgment still to come. He used the days of Noah to explain how unprepared people would be for His coming.
But as the days of Noah were, so also will the coming of the Son of Man be. For as in the days before the flood, they were eating and drinking, marrying and giving in marriage, until the day that Noah entered the ark, and did not know until the flood came and took them all away, so also will the coming of the Son of Man be.
The people went on eating and drinking, marrying and arranging marriages, right up to the flood. Those ordinary activities were not themselves their wrongdoing. They carried on with daily affairs without taking God’s warning seriously, until judgment overtook them. Jesus treated Noah’s experience as real history and warned that His own coming would likewise find people unready.
I can become so occupied with work, plans, and the next family responsibility that I give little thought to answering to God. His patience does not mean His warning has expired. Christ calls us to remain watchful, without pretending to know the day or hour that He says we do not know (Matthew 24:36, 42-44).
Noah responded differently to the warning he received. Paul describes his faith and the action it produced.
By faith Noah, being divinely warned of things not yet seen, moved with godly fear, prepared an ark for the saving of his household, by which he condemned the world and became heir of the righteousness which is according to faith.
Noah had not seen the coming judgment, but he believed God’s warning. Godly fear led him to undertake the work that would preserve his household. His conduct exposed the world’s refusal to heed the same God, and Hebrews calls him an heir of righteousness according to faith.
Preparing the ark did not buy the grace Genesis says Noah found. He trusted God’s warning and used the refuge God provided. The rainbow came after his deliverance, so seeing that sign could never have been his means of escape from the flood. I should value the sign without trusting a visible object in place of the God who speaks.
Peter warns that scoffers will dismiss Christ’s promised coming because they expect the world to continue as it always has.
For this they willfully forget: that by the word of God the heavens were of old, and the earth standing out of water and in the water, by which the world that then existed perished, being flooded with water. But the heavens and the earth which are now preserved by the same word, are reserved for fire until the day of judgment and perdition of ungodly men.
The scoffers deliberately leave creation and the flood out of their reasoning. God made the world by His word, and the flood had already disproved their claim that it had always continued undisturbed. By that same word, He now preserves the heavens and earth for fire and the judgment of ungodly people.
Peter explains the delay in terms of God’s patience and desire that people repent. We should not mistake the time He gives us for either inability or indifference on His part. The promised day will come, and the certainty of it calls for holy conduct now. Believers look beyond the destruction to God’s promised new heavens and new earth, where righteousness dwells (2 Peter 3:8-13).
Judgment by fire does not break God’s promise concerning destruction by floodwaters. Genesis never guaranteed that the fallen world would escape every further judgment or stay in its present condition forever. Peter announces its dissolution and the new, righteous creation God has promised afterward.
Unbelievers will be raised bodily and face the Great White Throne judgment described in Revelation 20:11-15. The Lake of Fire is the second death, the final and irreversible destruction of human body and soul. Human souls are not inherently immortal, and I do not read this judgment of unbelievers as endless conscious torment. Revelation 20:10 explicitly says that the devil, beast, and false prophet will be tormented forever; I do not extend that description to those judged at the Great White Throne. Final destruction does not mean the dead are unconscious while awaiting resurrection or that everyone will eventually be saved.
Modern Uses and the Need for Christ
People reproduce rainbow colors in art, children’s materials, clothing, advertising, and political symbols. A person can use the same colors to communicate many different messages. Those uses do not take the rainbow away from God or gain authority to revise His words in Genesis. He calls it His sign, and His promise continues regardless of the meanings people attach to their own designs.
When a rainbow is used to celebrate sexual relationships outside God’s design, I cannot endorse that message simply because the image is attractive or familiar. Marriage is the covenant union of one man and one woman, and sexual relations belong within that union. Desire, social approval, and a colorful symbol cannot give us authority to redefine what God established.
Nor does disagreement permit contempt for the people involved. Everyone bears God’s image and needs the same Savior. Christians should refuse mockery, threats, and selective outrage while speaking honestly about sin. If I condemn someone else’s conduct while excusing sexual sin in my own life, I am disregarding the authority I claim to defend. We should speak with self-control and patiently offer the gospel.
The world God preserved was the world into which His Son came. Jesus is the eternal Son, fully God and fully man. Born of a virgin, He remained completely sinless. Wicked men tortured and killed Him, but He willingly gave Himself to be slain as the perfect sacrifice for our sins. His atonement rests on His perfection and that voluntary sacrifice. He shed His innocent blood and died, completing His saving sacrifice before His burial and bodily resurrection.
The Father did not punish, curse, abandon, strike, bruise, or pour wrath on Jesus. Father, Son, and Holy Spirit acted in perfect unity in our redemption. Christ died for the sins of the whole world, and God’s offer of salvation is genuine for every person. People can resist His grace and reject the Savior.
Everyone who repents and believes is forgiven and justified, declared righteous before God. God gives that person new birth, and the Holy Spirit permanently indwells and seals him. Every genuine believer is eternally secure in Christ. A superficial profession of Christian faith does not establish new birth, and security gives no permission for lawlessness. Obedience is evidence of the new life; it neither earns salvation nor keeps us saved.
My Final Thoughts
The rainbow gives me reason to thank God for keeping His word in a world that still sins against Him. I need to remember the promise He actually gave, honor the human life He requires us to protect, and use His patience as an opportunity to respond to Him. The sign promises preservation from another worldwide flood; Christ gives forgiveness and resurrection life to everyone who repents and believes. I can admire the rainbow’s beauty while trusting the Savior I still need.