Matthew 5:17 is probably the single most-cited verse in Hebrew Roots Movement apologetics. Jesus says: "Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfil them." The HRM reads this as Jesus confirming the permanent, ongoing validity of the Torah in its entirety. If Jesus came to fulfil rather than abolish, and fulfilment means confirmation, then the Torah stands - feasts, dietary laws, Sabbath, all of it.

The problem with this reading is not that it is theologically convenient - it is that it misreads the Greek word plēroō and ignores the context that immediately follows.

What plēroō Actually Means

The Greek word plēroō - translated "fulfil" - carries a range of meanings across the New Testament, but its core meaning is "to fill completely," "to bring to completion," or "to bring to its intended goal." It is the word used when a prophecy is fulfilled - not confirmed as ongoing, but brought to its appointed completion. It is used when a cup is filled to the brim - not kept at a fixed level indefinitely, but brought to fullness. It is used when a period of time is completed - not maintained unchanged, but brought to its end.

Of the approximately 90 uses of plēroō in the New Testament, not one means simply "confirm as permanently ongoing." When Matthew uses it in his fulfilment quotations - "this was to fulfil what was spoken by the prophet" - he does not mean "this event confirmed that the prophecy is still in force." He means "this event brought the prophecy to its completion."

The HRM's reading of Matthew 5:17 requires plēroō to mean something it does not mean elsewhere in the New Testament or in the Greek of this period.

The Context: The Six Antitheses

The immediate context of Matthew 5:17 is the most decisive evidence against the HRM reading. Jesus follows his statement about fulfilment with six antitheses - six contrasts between what "was said" (by the Torah or its interpreters) and what he says:

"You have heard that it was said... But I say to you..." - Matthew 5:21–22, 27–28, 31–32, 33–34, 38–39, 43–44

In each case, Jesus takes a Torah command - or a common interpretation of it - and radicalises, deepens, or in some cases explicitly revises it. He moves murder from action to heart-attitude. He moves adultery from action to gaze. He moves "an eye for an eye" - the lex talionis, explicitly stated in Exodus 21:24 - to non-retaliation. He moves "love your neighbour" to love your enemy.

The formula "but I say to you" - ego de legō hymin - is extraordinary in a Jewish context. Torah teachers cited authorities: "Rabbi Akiva says..." or "as Moses commanded..." Jesus cites no authority but himself. He speaks as the one whose word has authority over the Torah - not to abolish it, but to bring it to its full and final meaning in himself.

If "fulfil" in verse 17 means "confirm as permanently ongoing in every detail," the antitheses that immediately follow make no sense. You cannot confirm Torah as permanently binding and then say "you have heard that it was said an eye for an eye - but I say to you, do not resist the one who is evil." These are in tension unless "fulfil" means something other than straightforward confirmation.

Three Interpretive Options

Scholars have proposed three main readings of "fulfil" in Matthew 5:17, and it is worth considering each.

The first is the HRM reading: fulfil means confirm as permanently valid. As we have seen, this does not fit the Greek, does not fit the immediate context, and does not fit Matthew's other uses of the word.

The second is the teaching-completion reading: Jesus fulfils the Torah by giving its definitive, authoritative interpretation - teaching what it always truly meant. On this reading, the antitheses are not revisions but clarifications: murder was always about heart-attitude, adultery was always about intention. This reading has merit and captures something true - Jesus does bring the law to its deepest meaning. But it struggles with the "eye for an eye" antithesis, where Jesus is not merely clarifying but explicitly moving beyond the Torah command to something new.

The third is the eschatological-completion reading: Jesus fulfils the Torah by being its goal, its telos, its appointed end. The Torah was given to point forward to him; he brings it to its intended completion by being everything it was pointing to. This is the reading that fits plēroō's range of meaning, fits Matthew's other fulfilment quotations, fits Paul's description of Christ as "the end of the law" (Romans 10:4), and makes coherent sense of the antitheses that follow.

On this reading, "fulfil" in Matthew 5:17 is not a word about Torah's ongoing validity. It is a word about Jesus's relationship to Torah - he is its completion, its fullness, the reality to which it was always pointing. That is a far more exalted claim than mere confirmation - and it is precisely the claim that the New Testament consistently makes about Jesus and the Torah.

The Permanent Validity of Moral Truth

None of this means Jesus abolished moral truth. The antitheses make this clear in the opposite direction - he intensifies moral demand, does not relax it. Murder, adultery, truth-telling, love of enemy - these are not set aside. They are deepened and radicalised, now grounded not in external law but in the character of God himself and the life of the Spirit.

The Torah's moral content - reflecting God's eternal character - is not abolished by fulfilment. It is brought to its highest expression. What is fulfilled and superseded is the Torah as a covenant administration, a system of types and shadows, a pedagogue leading to Christ. What remains and deepens is the moral truth the Torah was always imperfectly expressing.

This is precisely what Paul says in Romans 3:31: "Do we then overthrow the law by this faith? By no means! On the contrary, we uphold the law." And in Romans 8:4: the righteous requirement of the law is fulfilled in those who walk not according to the flesh but according to the Spirit.

The law is not abolished. It is fulfilled - brought to completion - in Christ. And those who are in Christ, walking by his Spirit, are the ones in whom that fulfilment is now lived out.

Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfil them. - Matthew 5:17