“You have heard that it was said… but I say to you…”
— Matthew 5:21–22
“For Christ is the end of the law for righteousness to everyone who believes.”
— Romans 10:4
At first glance, these verses seem to contradict each other.
In Romans, Paul says Christ ended the Law.
But in the Gospels, Jesus seems to tighten the Law — not relax it.
He says, “You’ve heard it said, ‘Do not murder,’ but I say, if you’re angry, you’re guilty.”
“You’ve heard, ‘Do not commit adultery,’ but I say, if you even look with lust, you’ve sinned.”
Was Jesus contradicting Paul?
Did He actually raise the standard for righteousness?
Or was something deeper happening?
Let’s unpack it.
Jesus Didn’t Raise the Law — He Revealed Its Depth
When Jesus said, “You have heard that it was said, but I say to you…”
He wasn’t adding new laws.
He was revealing what the Law always truly demanded — absolute perfection.
Israel had reduced the Law to manageable rules — external obedience they could check off.
They thought righteousness was about avoiding bad behavior.
But Jesus shattered that illusion.
He showed that the Law was never about behavior — it was about the heart.
- The Law said, “Do not murder.”
Jesus said, “If you harbor anger, you’ve already broken it.” - The Law said, “Do not commit adultery.”
Jesus said, “If you lust, you’ve already failed.”
Why? Because God’s holiness isn’t skin-deep.
It reaches to motives, thoughts, desires — the hidden parts of us.
In other words, Jesus wasn’t making the Law harder.
He was showing that it was impossible — if you’re trying to keep it for righteousness.
The Law Was Never Given to Save
Paul says in Galatians 3:24:
“The Law was our tutor to bring us to Christ, that we might be justified by faith.”
The Law was a mirror — to reveal sin, not remove it.
Jesus, in the Sermon on the Mount, was holding up that mirror again.
He wanted His audience — especially the self-righteous Pharisees — to see that even their best obedience wasn’t enough.
He exposed that no one can meet God’s standard.
That’s why, by the end of His sermon, He says something shocking:
“Be perfect, therefore, as your heavenly Father is perfect.” (Matthew 5:48)
That’s not an encouragement. That’s a verdict.
It’s Jesus saying, “If you want to live by the Law, you’ll need to match God’s perfection — nothing less will do.”
He wasn’t inviting effort. He was exposing impossibility.
Jesus Was Driving People to Grace
The point of the Law — and of Jesus’ teaching about it — was to bring us to the end of self-righteousness.
Until we realize the Law demands perfection, we’ll keep thinking we can “do enough.”
That’s why, when the rich young ruler said, “I’ve kept all the commandments,” Jesus didn’t applaud him — He exposed him.
“Go, sell everything you have and follow Me.” (Mark 10:21)
The man walked away sad. Why?
Because he thought the Law was achievable. Jesus showed him it wasn’t.
The moment you see the Law for what it is — an impossible demand —
you’re ready to see the cross for what it is — a perfect provision.
Jesus’ goal was never to reform sinners by giving them better rules.
His goal was to redeem them by giving them His righteousness.
Christ Fulfilled the Law, Then Ended It
When Jesus lived a sinless life, He fulfilled every demand of the Law.
When He died, He paid every penalty for our failure to keep it.
When He rose, He inaugurated a new covenant — one based on grace, not performance.
“For sin shall no longer be your master, because you are not under the law but under grace.” (Romans 6:14)
So when Jesus taught the Law in the Gospels, He was still speaking to people under the Law.
The New Covenant wasn’t in effect until the cross.
From Matthew through John (until the resurrection), the old covenant was still active — and Jesus, as its final Prophet, was revealing its full weight.
Once He died and rose again, the Law’s authority ended.
The curtain was torn. The covenant was complete.
The Law Condemns, Grace Transforms
When people today try to “live by Jesus’ teachings” without understanding the cross,
they’re often unknowingly putting themselves back under the Law He came to end.
The Sermon on the Mount isn’t a new Christian rulebook —
it’s a mirror showing what life would require if we were to earn righteousness apart from Christ.
But under grace, something powerful happens:
The very holiness the Law demanded, the Spirit now produces in us.
“For what the law could not do, in that it was weak through the flesh,
God did by sending His own Son… that the righteous requirement of the law might be fulfilled in us.”(Romans 8:3–4)
The Law demanded righteousness from man.
Grace imparts righteousness to man.
The Law commanded love.
Grace produces love.
The Law said, “Try harder.”
Grace says, “Trust deeper.”
The Summary
So why did Jesus “double down” on the Law?
Because He wasn’t raising the bar —
He was showing that no one could reach it.
He wasn’t contradicting Paul —
He was setting the stage for Paul’s revelation.
He wasn’t reintroducing Moses —
He was introducing Himself as the end of Moses.
In short:
- Jesus taught the Law to show its impossibility.
- He fulfilled the Law to show His perfection.
- He ended the Law to bring us grace.
Final Thought
When Jesus said, “Be perfect as your Father is perfect,”
He wasn’t calling you to strive harder —
He was calling you to surrender deeper.
The Law was the end of man’s attempts at righteousness.
Christ is the beginning of God’s gift of righteousness.
The Law demanded: Be like God.
Grace declares: You are in Christ.
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