Why did God give Israel the Law if no one can be saved by keeping it? The order in Exodus helps me answer that question. God redeemed Israel before Sinai, then shaped the nation through a covenant that exposed sin and pointed ahead to Christ.
Redemption Came Before the Covenant at Sinai
The Mosaic Covenant was God’s covenant with Israel through Moses at Mount Sinai. God did not come to slaves in Egypt and tell them to earn deliverance by keeping His commandments. He first judged Egypt and delivered them by His power. After bringing them through the sea, He led them to the mountain. I think this order is important to notice: redemption came before God gave Israel the covenant’s commands.
That order keeps us from turning the Law into a ladder that sinners climb to reach salvation. God gave it to a redeemed nation so their worship and national life would be ordered by His word. The Law showed them what holiness required, and it exposed the sin in their hearts. In doing so, it prepared the way for Christ. It could not justify sinners or give spiritual life to the flesh, but that does not make the Law evil. God’s standard was righteous. The problem was sinful man.
I also think we should pay close attention to the covenant’s audience. Unlike the Noahic Covenant, the Mosaic Covenant was not made with all nations. God gave it specifically to Israel after remembering His promises to Abraham, Isaac, and Jacob and bringing their descendants out of bondage. Sinai did not cancel the Abrahamic promise. It placed redeemed Israel under a national covenant as they lived before God in the land.
Exodus 19 calls them the house of Jacob and the children of Israel. This covenant was historical and specific, so we should not treat every Sinai command as though it were given directly to the church under the same terms. Yet it remains deeply useful because it teaches everyone about God’s righteousness and our need for a Savior.
Sinai also shows that outward deliverance and national privilege cannot cure the sinful heart. Israel had seen God’s power in Egypt and at the sea, yet the nation still could not produce righteousness through fleshly effort. The covenant clearly stated what was right. Israel’s continued sin showed why the people still needed God’s mercy and why a greater work within the heart would be necessary.
Before stating what Israel must do, God reminded them what He had already done. He had carried them on eagles’ wings and brought them to Himself. Then He announced their covenant calling.
“Now therefore, if you will indeed obey My voice and keep My covenant, then you shall be a special treasure to Me above all people; for all the earth is Mine.
And you shall be to Me a kingdom of priests and a holy nation.” These are the words which you shall speak to the children of Israel.
The words “if you will indeed obey” show that Israel’s enjoyment of covenant blessing in the land was tied to obedience. This differs from the ultimate Abrahamic promise, which rests on God’s oath and faithfulness. Grace was still present at Sinai, but Israel now stood under a covenant of law with real blessings and curses.
Their calling was high. Israel was to belong to God as a special treasure and live as a holy nation that made Him known among the surrounding peoples. Their priesthood and sacrifices taught them how sinful people could approach a holy God. The feasts, purity regulations, and other laws marked them off from idolatry and ordered their life on God’s terms.
The Law Revealed Holiness and Exposed Sin
The Ten Commandments begin with grace remembered. Before the LORD says, “You shall have no other gods before Me,” He identifies Himself as Israel’s Deliverer.
“I am the LORD your God, who brought you out of the land of Egypt, out of the house of bondage.”
Israel’s obedience was meant to answer God’s deliverance, not purchase it. The commandments revealed the moral will of the God who had redeemed them. They taught Israel to worship Him alone and revere His name. They also ordered family life and required righteousness toward one’s neighbor.
At the same time, the commandments exposed sin. It is easy to admire the Law from a distance, but God’s commands reach into worship, speech, desire, truthfulness, sexuality, property, and even coveting. The Law names sin with precision, but it cannot make sinful flesh righteous.
Therefore by the deeds of the law no flesh will be justified in His sight, for by the law is the knowledge of sin.
As I follow this purpose through Scripture, I also see that the Law directed Israel toward Christ.
Therefore the law was our tutor to bring us to Christ, that we might be justified by faith.
A tutor in that setting guarded and directed a child until the appointed time. In a similar way, the Law showed Israel what holiness required and exposed transgression. It surrounded the nation with sacrifices and other shadows that could be fulfilled only by the Messiah. Now that Christ has come, we do not go back under Sinai as though the tutor’s preparatory work were the final reality.
Christians often divide the Law into moral, civil, and ceremonial categories. Those categories can help us understand its range, but Moses did not give Israel three separate covenants. Sinai came as one national covenant. The Ten Commandments expressed God’s righteous standards. Civil statutes governed Israel’s courts, penalties, restitution, and social order, while ceremonial instructions concerned priesthood, sacrifices, purity, feasts, and tabernacle worship.
Because the covenant was given as a whole, those categories should help us read it rather than tempt us to pull it apart carelessly. The same God ordered Israel’s courtroom and its sanctuary. His commands addressed everyday dealings as well as formal worship. This is one reason the Law gives such a full picture of covenant life even though Christians now relate to God under the New Covenant.
This distinction helps us avoid confusion. The church does not offer Levitical sacrifices because Christ is the final sacrifice, and it does not enforce Israel’s civil code because the church is not Israel under Sinai. Still, God’s moral righteousness has not become unrighteous. New Covenant instruction again condemns idolatry, murder, adultery, theft, false witness, and coveting.
The key is our covenant relationship to God. Christians pursue holiness as people united to Christ and indwelt by the Spirit, not as Israelites under the Sinai covenant. Love fulfills the Law because it does no harm to a neighbor, but biblical love is not a lawless feeling. It produces obedience shaped by God’s character.
Blood, Priesthood, and Sacrifice Pointed Beyond Sinai
Exodus 24 records Israel’s solemn entrance into the covenant. Moses read the Book of the Covenant, and the people promised to obey all that the LORD had said. He then sprinkled blood on the altar and on the people.
Then he took the Book of the Covenant and read in the hearing of the people. And they said, “All that the LORD has said we will do, and be obedient.”
And Moses took the blood, sprinkled it on the people, and said, “This is the blood of the covenant which the LORD has made with you according to all these words.”
Blood stands at the center of this covenant ceremony because sin brings death and life belongs to God. Under Moses, sacrifices provided ceremonial cleansing and taught Israel about atonement, but they could not perfect the conscience or remove sin forever. Their repetition kept pointing beyond itself to the better sacrifice of Christ.
The covenant therefore gave more than commandments. God also provided a priesthood, a tabernacle, and a way for Israel to approach Him. I see mercy within the covenant here. God did not command sinful people to be holy and then leave them with no way to confess sin or receive the cleansing He prescribed. The altar and the Day of Atonement taught that access to God required mediation.
For the life of the flesh is in the blood, and I have given it to you upon the altar to make atonement for your souls; for it is the blood that makes atonement for the soul.
The animal sacrifices were never equal to Christ’s final sacrifice. They instructed Israel and provided covenantal cleansing, yet their constant repetition showed their limits. They could not cleanse the conscience in the final way sinners need.
For the law, having a shadow of the good things to come, and not the very image of the things, can never with these same sacrifices, which they offer continually year by year, make those who approach perfect.
A shadow is not false, but neither is it the substance. Its value comes from the reality that casts it. Christ is that reality. He is the better Priest and the better sacrifice. He did not bring the blood of bulls and goats; He gave Himself. The sacrifices taught the seriousness of sin, while Jesus accomplished the redemption they anticipated.
The Hebrew word תּוֹרָה (torah) can mean law, instruction, or teaching. Reducing the word to cold legalism misses its breadth. The Torah instructed Israel about worship and sacrifice as well as justice, holiness, and covenant life. God’s instruction was not the problem. Sin in the human heart was.
The Sabbath, Blessings, and Curses Marked Israel’s Covenant
Exodus 31 identifies the Sabbath as a sign between the LORD and Israel. It included a principle of rest, but under Moses it also served as a visible covenant marker for the nation God had set apart.
“Speak also to the children of Israel, saying: ‘Surely My Sabbaths you shall keep, for it is a sign between Me and you throughout your generations, that you may know that I am the LORD who sanctifies you.'”
The word translated “sign” is אוֹת (oth), which can mean a sign, token, or visible marker. The same word appears in other covenant settings, including the rainbow and circumcision, but each sign belongs to its own context. Here Scripture specifically calls the Sabbath a sign between the LORD and Israel.
For that reason, Christians should not be bound to Mosaic Sabbath keeping as though the church stood under Sinai. Colossians 2 tells believers not to let anyone judge them over festivals, new moons, or sabbaths. Those things were a shadow, while the substance belongs to Christ. This does not make rest, worship, or gathering with believers unimportant. Jesus gives true rest to those who come to Him, and Hebrews 4 describes a rest entered by faith rather than by returning to Sinai as our covenant.
The Mosaic Covenant also contained blessings for obedience and curses for rebellion. Leviticus 26 and Deuteronomy 28 promised rain, harvest, peace, and protection in the land when Israel obeyed. They also warned of disease, famine, defeat, exile, and covenant discipline when the nation turned away. Israel’s later history showed that these warnings were not empty.
“Yet they did not obey or incline their ear, but everyone followed the dictates of his evil heart; therefore I will bring upon them all the words of this covenant, which I commanded them to do, but which they have not done.”
The exile did not prove that God had been unfaithful; instead, it confirmed that He had told the truth. Israel broke the covenant, and the covenant itself had warned of judgment. That painful failure prepares us for the prophets’ promise of a New Covenant marked by forgiveness and inward transformation rather than the repeated cycle of command, failure, sacrifice, and judgment.
Christ Fulfilled the Law and Established the New Covenant
The Mosaic Covenant was temporary in its role. Paul says the Law was added because of transgressions until the promised Seed came. That Seed is Christ. The Law did not replace God’s promise to Abraham, and it was never intended to become the final covenant.
What purpose then does the law serve? It was added because of transgressions, till the Seed should come to whom the promise was made; and it was appointed through angels by the hand of a mediator.
Jesus said He did not come to destroy the Law or the Prophets but to fulfill them. He obeyed the Law perfectly and fulfilled its shadows. He also bore its curse and brought the righteousness toward which it pointed. He is the true sacrifice, the greater Priest, the true temple presence, and the Mediator of the New Covenant.
Likewise He also took the cup after supper, saying, “This cup is the new covenant in My blood, which is shed for you.”
The New Covenant is not a patch placed on Sinai. It is the better covenant established by Christ’s blood. Forgiveness rests on the finished work of its Mediator, and obedience now flows from a heart changed by God rather than from confidence in fleshly effort.
Believers are therefore not under the Mosaic Covenant. We do not offer animals through a Levitical priesthood. The church is not charged with enforcing Israel’s national civil code, and it does not bear the Sabbath as Sinai’s sign. Christ has come and established the New Covenant in His blood. This freedom from Sinai does not make sin harmless. Romans 8 explains that God did what the Law could not do because of the weakness of sinful flesh. Through His Son, He made it possible for the Law’s righteous requirement to be fulfilled in those who walk according to the Spirit.
Christ has redeemed us from the curse of the law, having become a curse for us, for it is written, “Cursed is everyone who hangs on a tree.”
Jesus bore the curse for us. This leaves no room for pride, because we did not save ourselves by keeping commandments. It also leaves no room to make peace with sin. The Son of God shed His blood to redeem us from sin and give us a new life of obedience.
The Mosaic Covenant Leads Us to the Gospel
Sinai’s thunder confronts us with God’s holiness, while the sacrifices show how serious sin is. The priesthood makes our need for a mediator visible. The covenant curses then reveal the cost of rebellion. All of this presses a question that human effort cannot answer: who can stand righteous before God?
The answer is Jesus Christ. The eternal Son of God became fully man without ceasing to be fully God. He lived without sin under the Law and willingly went to the cross. He was mocked, beaten, scourged, and crucified. He shed His blood and died, bearing the punishment for our sins in His innocent body. After He was buried, He rose bodily from the dead on the third day. Salvation is by grace through faith in Him, not by works of the Law.
That if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved.
For with the heart one believes unto righteousness, and with the mouth confession is made unto salvation.
For “whoever calls on the name of the LORD shall be saved.”
For related studies, see A Complete Bible Study on the Law, A Complete Bible Study on The New Covenant, A Complete Bible Study on the Blood of Christ for Salvation, and A Complete Bible Study on The Gospel.
My Final Thoughts
The Mosaic Covenant shows me how seriously God takes both holiness and sin. He redeemed Israel before Sinai, then gave the nation a covenant that ordered its worship and exposed the weakness of sinful flesh. Its sacrifices and priesthood kept pointing beyond themselves until Christ came. He fulfilled the Law and bore its curse, then established the New Covenant in His blood. Christians should not return to Sinai as though Jesus has not come, but we should never dismiss what the Law reveals about God’s character. I want its testimony to lead me away from works-righteousness and toward grateful obedience through the Spirit, resting completely in the Savior who has done what the Law could never do.