Continuity vs Discontinuity: What Matthew 5:17-20 Says
Short answer: Continuity and discontinuity are both true in Scripture, and Matthew 5:17-20 holds them together. Jesus says, "Don’t think that I came to destroy the law or the prophets. I didn’t come to destroy, but to fulfill." He does not cancel the moral will of God; he completes what the law and prophets pointed toward. At the same time, the New Testament teaches that the old covenant administration, with its sacrifices, priesthood, and ceremonial distinctions, has been superseded in Christ. Romans 10:4 says, "For Christ is the fulfillment of the law for righteousness to everyone who believes." So the law is not abolished as revelation, but its role as a covenant path to righteousness is ended. The believer reads the Old Testament as fulfilled in Jesus, not discarded.
Why the Sermon on the Mount Forces the Question
Matthew places these words early in the Sermon on the Mount, right after the Beatitudes and the call to be salt and light. The crowd is largely Jewish, and Jesus has just said that their righteousness must exceed that of the scribes and Pharisees. That raises an immediate question: is Jesus replacing Moses, or explaining him? His opening line answers the suspicion before it hardens. He does not want his hearers to think he came to tear down the law or the prophets. The Greek word behind destroy carries the sense of loosening or dismantling. Jesus insists his mission is not demolition.
Yet the same sermon will go on to intensify the law. Anger is treated as murder, lust as adultery, and oath-taking is swept aside. A teacher who intensifies the law is not abandoning it. He is claiming authority to interpret it truly. That is why the question of continuity and discontinuity cannot be dodged. If Jesus simply repeated Moses, there would be no sermon worth preaching. If he simply cancelled Moses, his claim to fulfill would be empty. The Sermon itself is the proving ground where both truths must be held.
Notice also the phrase the law or the prophets. This is a standard Jewish way of referring to the whole Hebrew Scriptures, not merely the Ten Commandments. Jesus is making a claim about the entire Old Testament canon. He is not picking out a few moral rules he likes and discarding the rest. He is saying that the whole prior revelation finds its intended destination in him. That is a massive claim, and it shapes how every Christian reads Genesis through Malachi. The Old Testament is not a failed experiment; it is a promise waiting for its yes in Christ.
So the passage sets the agenda. Readers who come to the Bible asking whether the Old Testament still applies are asking a real question, but Jesus reframes it. The better question is how it applies now that the one it pointed to has come. Continuity and discontinuity are not competing slogans to pick between. They are two sides of one fulfillment. The rest of this study will trace how the New Testament works that out, and where faithful Christians have differed in the details.
What Fulfill Does Not Mean in Matthew 5:17
The word fulfill is doing heavy work here. In Matthew, fulfillment language usually means that something spoken beforehand has now come to pass in Jesus. He fulfills prophecy by being the one the prophets described. But in this verse the object is the law itself, not just predictions. So fulfill also means that Jesus embodies and completes what the law demanded. He keeps it perfectly where Israel failed. He also fills it out, revealing its deepest intent in the Sermon that follows. Fulfillment is not cancellation; it is arrival.
Some readers hear fulfill and assume it means the law is now irrelevant, as if a fulfilled promise is a discarded promise. That is not how promises work. A promise kept is a promise honored. When a child finally receives the gift a parent promised, the promise is not thrown away; it is completed. In the same way, the law reaching its goal in Christ does not make the law false. It confirms that God's earlier words were true. The law was never the enemy of grace; it was the road that led to it.
Others hear fulfill and assume nothing changes at all, that every Old Testament regulation remains in full force for believers. But that reading collides with the rest of the New Testament, which speaks of a new covenant and a better mediator. Hebrews 8:6 says of Jesus, "But now he has obtained a more excellent ministry, by so much as he is also the mediator of a better covenant, which on better promises has been given as law." If the covenant is better and its promises better, something has genuinely shifted. Fulfillment brings both confirmation and transition.
The safest reading holds both. Jesus did not destroy the law, because the law's moral truth still stands and its prophetic witness still points to him. Jesus did fulfill the law, because he met its demands, bore its curse, and inaugurated the new covenant it anticipated. Anyone who collapses fulfill into abolish loses the continuity. Anyone who collapses it into repetition loses the discontinuity. Matthew 5:17 will not let us choose only one.
The Law, the Prophets, and the Passing of Heaven and Earth
The next verse presses the point with striking force. Jesus says that until heaven and earth pass away, not one jot or one tittle will pass from the law until all is accomplished. A jot is the smallest Hebrew letter, and a tittle is a tiny stroke that distinguishes one letter from another. Jesus is speaking about the permanence of God's revealed will down to the smallest detail. Nothing God has said will simply evaporate. This is a strong statement of continuity, and it should make us slow to dismiss the Old Testament.
But the verse also contains a time marker: until all is accomplished. What is the all? In Matthew's Gospel, Jesus' death and resurrection are the hinge of the ages. With the cross, he can cry out that it is finished. The old covenant's sacrificial system had a forward-looking character; it pointed to a sacrifice still to come. Once the reality arrives, the shadow's task is complete. So the permanence of the law's truth and the completion of its purpose are not in conflict. The law stands, and its goal has been reached.
This helps explain why the New Testament can speak of the law in different ways. It is holy, righteous, and good. It also is described as a custodian that held people in custody until faith came. Galatians 3:23 says, "But before faith came, we were kept in custody under the law, confined for the faith which should afterwards be revealed." That is not contempt for the law; it is a description of a temporary role. A tutor is not worthless once the child grows up, but the tutor no longer rules the house.
So when Jesus says the law will not pass away, he is not promising that the Levitical priesthood will continue forever. He is promising that God's revealed word is trustworthy and that every promise it contains will be accomplished. Heaven and earth will pass away before God's word fails. The Christian therefore honors the law by taking it seriously, reading it in light of its accomplishment, and refusing both to ignore it and to misuse it as a means of self-righteousness.
Christ the Goal of the Law in Romans 10
Paul's letter to the Romans gives us one of the clearest statements of discontinuity without contempt. Romans 10:4 says, "For Christ is the fulfillment of the law for righteousness to everyone who believes." The word rendered fulfillment here can also be translated goal or end. Christ is the terminus of the law's demand for righteousness. That does not mean the law was bad. It means the law could never produce the righteousness it required from sinful people. It could diagnose, but it could not heal.
Paul's argument in Romans 9 and 10 is about Israel and righteousness. His kinsmen pursued a law of righteousness but did not attain it because they pursued it by works rather than by faith. The law itself testified to this outcome. Its sacrifices pointed to a substitute; its prophets promised a new heart. Christ is the fulfillment of that testimony for everyone who believes, Jew and Gentile alike. The law's demand is met in him, and his righteousness is credited to those who trust him.
This is where continuity and discontinuity meet most sharply. The law still tells us what love of God and neighbor looks like. Its moral instruction has not been repealed. But the law is no longer the covenant instrument by which we are declared righteous. That role belongs to Christ alone. A believer who tries to use the law to establish a standing before God has misunderstood both the law and the gospel. The law leads us to Christ, and Christ fulfills the law for us.
So Romans 10:4 is a continuity text and a discontinuity text at once. Continuity: the law's purpose is honored, not shamed, because it always pointed to Christ. Discontinuity: the law is not the path to righteousness for the believer; Christ is. The Christian reads the commandments as instruction for the redeemed, not as a ladder to climb. That distinction is everything, and it keeps the sermon's tension intact.
A Better Covenant With Better Promises
Hebrews makes the discontinuity explicit in covenant terms. The letter contrasts the old order of priests, sacrifices, and tabernacle with the superior ministry of Jesus. Hebrews 8:6 says that he is the mediator of a better covenant enacted on better promises. A better covenant implies that the earlier one was not final. That is not an insult to Moses; it is the logic of promise. God always intended to bring his people into something greater than the shadow could provide.
The quotation that follows in Hebrews 8 comes from Jeremiah, where God promises to make a new covenant, not like the covenant he made with the fathers. In that new covenant, God will put his laws in the minds and write them on the hearts of his people. Notice the continuity inside the discontinuity. The law is not erased; it is internalized. What was once external becomes inward by the Spirit. The new covenant does not abandon God's will; it plants it deeper and makes it possible.
This is why the language of new covenant in 2 Corinthians 3 matters so much. Paul calls believers servants of a new covenant, not of the letter but of the Spirit, and he says the letter kills while the Spirit gives life. The letter here is not the Bible as such; it is the old covenant's written code functioning as a condemning power apart from the Spirit. The same commandments that condemn can be written on the heart by the Spirit, producing willing obedience rather than mere external compliance.
So there is real discontinuity: a new covenant replaces the old administration. And there is real continuity: the God who gave the law is the God who writes it on hearts. The believer does not live as if the Old Testament never happened, nor as if the new covenant never came. We live in the overlap, honoring the whole counsel of God and looking to the mediator of the better covenant for both forgiveness and transformation.
What the New Covenant Does to the Dividing Wall
The covenant change also reshapes who belongs to the people of God. Ephesians 2 describes Christ as our peace, the one who made Jew and Gentile one and broke down the middle wall of separation. The ceremonial law, with its food laws and purity distinctions, had marked Israel off from the nations. In Christ, that dividing wall is dismantled. The result is one new humanity, reconciled to God through the cross.
Ephesians 2:14 says, "For he is our peace, who made both one, and broke down the middle wall of separation." This is discontinuity with a purpose. The old boundary markers are gone because the covenant community is now defined by faith in Christ rather than by ethnic and ceremonial identity. Gentiles do not become Jews to belong; Jews and Gentiles together become the church. The law's role of separating has ended, and the law's moral substance, summed up in love, remains.
This helps with a common confusion. People ask whether the Sabbath, dietary rules, and festivals are still binding. Faithful Christians have differed here, and honesty requires saying so. Some traditions treat the Ten Commandments, including a Sabbath principle, as continuing moral law, while seeing ceremonial regulations as fulfilled. Others read the whole law as fulfilled in Christ and look to the New Testament for moral instruction, while still valuing the Old Testament's wisdom. The differences are real, and they are not all the same as denying Scripture.
What all sides should agree on is that the cross creates a new people. The wall is down. Neither Jew nor Gentile is saved by law-keeping, and neither is excluded from grace. Continuity and discontinuity serve the gospel here: the law's witness continues, the covenant's barrier does not. Christ is our peace, and his peace shapes how we read every earlier chapter of the story.
Living With the Tension Instead of Resolving It Away
Many disputes over the law come from a desire to simplify. One camp says the law is done away, so the Old Testament is mostly background. The other says the law stands in full force, so believers are obligated to its entire code. Matthew 5:17-20 resists both shortcuts. Jesus fulfills, which means the law's purpose is complete in him, and the law's truth is not dissolved. Living with that tension is not confusion; it is obedience to the text.
A practical way to read the Old Testament as a Christian is to ask three questions of every passage. What does this reveal about God's character and will? How does this point to or prepare for Christ? How does it instruct the church now, given the completion of his work? These questions honor continuity, because they treat the text as authoritative revelation. They honor discontinuity, because they read it in light of its fulfillment, not as though the new covenant had never come.
The same pattern applies to the moral law. The commandments still show us what love looks like in practice. But we do not obey them to earn acceptance, and we do not ignore them because grace is free. Grace teaches us to say no to ungodliness. The Spirit writes on the heart what the letters once demanded from outside. The result is not lawlessness and not legalism; it is the obedience of children who have been loved first and now want to please their Father.
Where Christians differ, charity is required. Some will keep a Sabbath rest as a gift; others will treat every day alike. Some will see ongoing moral force in distinctions others believe have passed. Paul's counsel in these matters is to act from conviction and not to despise one another. The main thing is that Christ is the fulfillment of the law for everyone who believes. Whatever our differences, we stand on the same fulfillment and honor the same Lord.
Biblical fidelity check
Matthew 5:17-20 establishes that Jesus did not come to abolish the law or the prophets but to fulfill them, that the law's revealed will is not lightly discarded, and that greatness in the kingdom is connected to teaching and doing these commands rightly. It does not establish that every Old Testament regulation continues unchanged for believers, nor does it specify which commands are ceremonial and which are moral. It also does not say that law-keeping earns righteousness, since the whole sermon drives toward a righteousness that exceeds that of the scribes and Pharisees.
A common misreading treats the passage as if Jesus said the entire Mosaic code remains binding on Christians exactly as given. That reading must then explain why the New Testament speaks of a new covenant, a change of priesthood, and the setting aside of dietary distinctions. It is wrong because it treats fulfillment as nothing more than repetition, flattening the covenant transition the rest of Scripture describes. The opposite misreading treats fulfill as abolish by another name, as though the Old Testament no longer matters. That too is wrong, because Jesus explicitly denies destroying and speaks of the law's permanence until all is accomplished.
Other passages that speak to Matthew 5:17-20
Several New Testament passages help readers work through continuity and discontinuity alongside this Sermon on the Mount text. For a study of how the cross ends the old covenant's dividing wall and creates one new people, see What Does 1 Corinthians 1:10 Mean? Context, Theology, and Application. For the call to unity that flows from being sanctified in Christ, see What Does 1 Corinthians 1:9 Mean? Context, Theology, and Application. For the wider setting of Paul's argument about the church as God's holy people, see 1 Corinthians 1: Called, United, and Boasting in the Lord. And for warnings about how freedom in Christ can be misused, see 1 Corinthians 10: Warnings and Freedom. Together these passages show that fulfillment in Christ reshapes both identity and conduct without discarding God's earlier revelation.
Frequently asked questions
Did Jesus abolish the Old Testament law in Matthew 5:17?
No. Jesus explicitly denies it, saying he came not to destroy the law or the prophets but to fulfill them. Fulfillment means he completes their purpose and embodies what they pointed toward. The law's moral instruction still reveals God's will, and its prophetic witness still leads to Christ. What changes is its role as the covenant path to righteousness, since Christ now is the fulfillment of the law for everyone who believes. So the Old Testament is not discarded; it is read in light of its goal.
What is the difference between continuity and discontinuity?
Continuity means God's revelation and moral will carry forward from the old covenant into the new. Discontinuity means the old covenant administration, with its sacrifices, priesthood, and ceremonial boundaries, has been fulfilled and superseded in Christ. Both are biblical. The same God speaks, but he has enacted a better covenant with better promises and a better mediator. Holding both together keeps believers from dismissing the Old Testament and from treating it as if the new covenant had never arrived.
How should Christians apply the law today?
Christians should read the law as God's truthful revelation, ask how it points to Christ, and apply its moral substance as instruction for the redeemed. We do not obey to earn standing before God; we obey because we have been accepted in Christ and the Spirit writes God's will on our hearts. Faithful Christians differ on details like Sabbath observance and dietary rules, and these differences should be handled with charity. The center is Christ, the fulfillment of the law for everyone who believes.
