Do-Not-Destroy
Short answer: In Matthew 5:17-20 Jesus says that He did not come to destroy the Law or the Prophets but to fulfill them. This is not a casual remark. He is answering a charge that His teaching set aside Scripture, and He denies it flatly. The word translated fulfill means to complete, to bring to its intended goal, not to cancel. So the do-not-destroy principle is simple: the coming of Christ does not make the Old Testament obsolete; it reveals what it was always pointing toward. Romans 3:31 says the same thing in different words: Do we then nullify the law through faith? May it never be! No, we establish the law. The Law and the Prophets remain God-breathed and profitable, and they are read rightly only in the light of the One they foretold.
What Jesus Was Actually Answering
Matthew places this saying early in the Sermon on the Mount, right after the Beatitudes and the declaration that His disciples are salt and light. The crowd has just heard blessing pronounced on the poor in spirit, the mourners, the meek, the merciful, and the persecuted. Nothing in that list sounds like a rejection of Israel's Scriptures. Yet Jesus anticipates an objection. He knows what people will assume when a teacher speaks with authority about the kingdom of heaven.
His words are a preemptive correction. Do not think that I came to destroy the law or the prophets. The verb destroy suggests pulling down a building or dismantling something that stands. Jesus is addressing the suspicion that His ministry was a demolition project aimed at the Law of Moses and the prophetic writings. He refuses the role of the destroyer. Whatever else His hearers might conclude about Him, He will not be the one who tears down what God gave.
The stakes are high because the Law and the Prophets were not merely religious customs. They were God's covenant word to Israel, the shape of His people's life, and the promises that carried their hope. To claim that the Messiah came to scrap them would have been a scandal, and Jesus says plainly that the charge is false. He stands with the Scriptures, not against them.
What It Means That He Came to Fulfill
The word fulfill in Matthew 5:17 carries the idea of filling up to the brim, bringing something to its intended fullness. It is the same word Matthew uses again and again when he says that an event happened to fulfill what was spoken by the prophet. Fulfillment does not mean the promise failed and got replaced. It means the promise arrived. The shadow met the substance; the sign met the thing signified; the arrow struck its target.
So when Jesus says He fulfills the Law and the Prophets, He is claiming to be the point toward which the whole Old Testament moves. The ceremonial laws pointed to the sacrifice He would be. The moral law revealed the character of the God who was now standing among them. The prophetic promises of a coming righteous king were being enacted in front of their eyes. Everything in those writings finds its yes in Him.
This is why the cross and the empty tomb do not cancel the Old Testament; they explain it. Once you see the Lamb, the sacrifices make sense. Once you see the true King, the prophets make sense. Once you see the One who loved the Lord with all His heart and His neighbor as Himself, the commands make sense. On this reading, the Law is not the enemy of the gospel. It is the gospel's native land.
Not One Small Letter Will Pass Away
Jesus presses the point further with a statement that should give pause to anyone who treats the Old Testament as a discarded draft: For most certainly, I tell you, until heaven and earth pass away, not even one smallest letter or one tiny pen stroke shall in any way pass away from the law, until all things are accomplished. He is speaking of the smallest marks in the Hebrew text. Nothing is too minor to matter.
The phrase until all things are accomplished is important. Jesus is not saying that every ceremonial regulation continues unchanged forever. He is saying that the law does not fail. Its purpose succeeds. The moral commands remain the shape of a life that pleases God. The ceremonial commands reach their goal in Christ and are no longer observed by His people because the reality has come. The prophetic promises are fulfilled in Him.
This is a both-and, not an either-or. We do not obey the Law in order to be saved, and we do not ignore it because we are saved. It remains God's word, and God's word does not have an expiration date. Psalm 119:89 says, Yahweh, your word is settled in heaven forever. What God has spoken, He has not withdrawn.
Whoever Relaxes One of the Least of These Commandments
Jesus then draws a line between two kinds of teachers. Whoever therefore shall break one of these least commandments, and teach others to do so, shall be called least in the Kingdom of Heaven; but whoever shall do and teach them shall be called great in the Kingdom of Heaven. This is a warning about how we handle Scripture, not merely a warning about personal sin. Teaching others to disregard God's commands is a serious matter.
The verse does not say such a person loses salvation, and we should not read more into it than is there. It speaks of standing in the kingdom, of being called least or great. But it should sober anyone who dismisses a command of God as outdated, incidental, or beneath concern. The God who gave the commands counts the smallest letter worthy of preservation.
Notice too that Jesus pairs doing and teaching. It is not enough to teach correctly while living otherwise, and it is not enough to live decently while treating Scripture as optional for others. The one who is great in the kingdom is the one whose life and doctrine run in the same direction. That is a high standard, and it points us again to the One who alone did and taught perfectly.
Unless Your Righteousness Exceeds That of the Pharisees
The paragraph closes with one of the most searching sentences in the Sermon: For I tell you that unless your righteousness exceeds that of the scribes and Pharisees, there is no way you will enter into the Kingdom of Heaven. The scribes and Pharisees were not careless people. They were serious about the Law, and most of their contemporaries would have regarded them as the standard of religious devotion.
So what kind of righteousness exceeds theirs? It cannot be that Jesus wants His disciples to out-multiply Pharisaic rules. He spends the rest of the sermon showing that the heart behind the command is what God always intended. The Pharisees were meticulous about the outside while leaving the inside untouched. Jesus is calling for a righteousness deeper than external conformity and, crucially, a righteousness we do not produce ourselves.
This is where the sermon drives us. If the standard is the perfect obedience of Christ, then our only hope is to receive His righteousness by faith. And the person who has received it does not then despise the Law. He loves it. He has been given a new heart that wants to walk in God's ways. The gospel does not make obedience optional; it makes obedience possible and desirable.
How the Apostles Handled the Do-Not-Destroy Principle
The New Testament writers did not abandon this. Paul, who argued most strenuously that no one is justified by works of the Law, refused to turn that into a dismissal of the Law. Do we then nullify the law through faith? May it never be! No, we establish the law. Faith is not the enemy of the Law. Faith is what the Law was always pointing toward.
Second Timothy frames the same confidence in a different way. Every Scripture is God-breathed and profitable for teaching, for reproof, for correction, and for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work. Paul wrote those words when the church's Scriptures were the Old Testament, with the growing apostolic writings alongside them. He expected all of it to be useful.
None of these passages mean that every command of the Old Testament applies to believers in exactly the same form. The New Testament itself tells us that the sacrificial system pointed to Christ and reached its end in Him. But the direction of travel is always the same: Scripture is never discarded, only understood more deeply in the light of its fulfillment.
What Do-Not-Destroy Means for Ordinary Bible Reading
Practically, this changes how we read the Bible. It means we do not skip the Old Testament as if it belonged to another religion, and we do not read it as if it stood alone. We read Leviticus looking for Christ. We read the Psalms praying through them as our Lord did. We read the prophets with the resurrection in view, seeing the promises they carried now answered in the One who rose.
It also means we resist the temptation to whittle God's commands down to a few that we find manageable. Jesus warned against relaxing the least of them. A faithful teacher will not quietly dismiss a command because it is inconvenient, nor will he pile burdens on people that God never placed there. The goal is to keep the whole counsel of God in view, letting Scripture interpret Scripture.
The Holy Spirit, who inspired these words, still uses them to teach, reprove, correct, and train. Revelation warns against adding to or taking away from the words of the prophecy. While that warning is directed to Revelation specifically, the spirit behind it runs through the Bible. We are stewards of a word we did not write. Our task is not to edit it down to size.
Freedom and Reverence Held Together
Christians throughout history have disagreed about how much of the Mosaic law remains directly binding in its original form. Some emphasize the enduring moral law while seeing the ceremonial and civil elements as fulfilled in Christ. Others, particularly those in Reformed and theonomic traditions, argue for a broader continuing use of the law in its moral aspects. Faithful believers differ here, and we should represent both sides honestly.
What unites them, and what Matthew 5:17-20 secures, is a shared refusal to treat Scripture as trash. Whatever a Christian concludes about the Sabbath, dietary laws, or the civil statutes of Israel, he cannot conclude that the Law was a mistake. Jesus said otherwise. The Old Testament is not the record of an angry god who was later placated. It is the word of the same God who loved the world and sent His Son.
So we hold freedom and reverence together. We are free from the law's condemnation, and we are not free to mock it. We are free to read the Old Testament without returning to a yoke of slavery, and we are not free to silence it. The person who has been met by the fulfillment of the Law loves the Law more than the person who never saw what it was pointing to.
Biblical fidelity check
What Matthew 5:17-20 establishes is that Jesus did not set aside the Law or the Prophets, that their smallest letters remain significant until all is accomplished, and that teaching others to relax those commands is a serious matter in the kingdom. It establishes a continuity between the Old Testament and Christ, and it sets a standard of righteousness higher than external rule-keeping. It also teaches that the observance of commands should flow from a transformed heart and position the disciple over against the merely outward righteousness of the scribes and Pharisees.
The passage does not establish that every command of the Mosaic law continues in its original form for the church. The New Testament elsewhere explains that the ceremonial system reached its goal in Christ's sacrifice, and the apostles never required Gentile believers to take up the whole law. A common misreading claims that Jesus intended us to keep all the Old Testament laws exactly as Israel did, including sacrifices and temple regulations. That reading ignores what Jesus says about fulfillment and what Hebrews and the apostolic letters make plain, and it ends up treating the shadow as if the substance had never come.
Other passages that speak to Matthew 5:17-20
The theme of honoring Scripture runs through the whole Bible, and these studies trace it further: What Does 1 Timothy 1:15 Mean? Context, Theology, and Application, 1 Timothy 1: Grace, Mercy, and Sound Doctrine, 1 Timothy 3: Overseers and Servants in God's House, and 1 Timothy 4: Guarding Faith and Godliness.
Frequently asked questions
Did Jesus abolish the Old Testament law?
No. In Matthew 5:17 He says explicitly, I didn't come to destroy, but to fulfill. The Law and the Prophets were not canceled; they were completed in Him. This does not mean every ceremonial regulation continues unchanged for the church. It means the whole Old Testament retains its authority and usefulness, and it is read rightly when it is read in light of Christ, who is its goal and its fulfillment.
What does fulfill mean in Matthew 5:17?
To fulfill means to bring to full measure, to complete what was intended, not to terminate. When Matthew later says an event happened to fulfill a prophecy, he means the promise arrived, not that it was discarded. Jesus fulfills the Law the way the reality fulfills the shadow and the substance fulfills the sign. Everything the Law pointed toward is found in Him, so He establishes rather than nullifies it.
Are Christians still supposed to obey the Ten Commandments?
The moral commands of the Law, summed up in loving God and loving neighbor, remain the shape of life that pleases God, and the New Testament repeats them as binding on believers. Christians obey them not to earn salvation but because they have been saved. At the same time, the ceremonial and civil regulations given to Israel reached their goal in Christ, and believers are not required to observe them in their original form.
