Matthew 5:17-48

Have you ever wondered how the Old Testament law fits into following Jesus? Some say the law has nothing to do with following Christ today. Others insist it has almost everything to do with it. These debates aren’t new. Even in Jesus’ own day, people wanted to know where he stood. And perhaps nowhere does he speak more clearly than in one humbling sentence: “…be perfect as your heavenly Father is perfect” (Matthew 5:48).

At first hearing, that line can push us into familiar camps, either “the law is nothing” or “the law is everything.” But Jesus is going deeper. He’s not lowering the bar, and he’s not simply repeating what others taught. He’s revealing the law’s true purpose.

Jesus begins a block of teaching on the Old Testament (Matthew 5:17-48) by saying, “Do not think that I have come to abolish the law or the Prophets…” He’s emphatic: God’s commands were never harsh rules the Son came to undo. If you want to know the heart of God, look at his laws. And if you’ve ever fallen in love with the way Jesus lived, you’ve actually fallen in love with a life lived perfectly in relation to God’s law.

But Jesus also warns that law‑keeping alone isn’t enough. The most meticulous rule‑followers of his day still missed the mark because their obedience was self‑exalting rather than God‑glorifying. You can make the law everything, and, in doing so, miss God entirely.

So Jesus takes the law deeper, down to the heart. Consider just one example: “You have heard that it was said, ‘You shall not murder,’ … but I say to you that everyone who is angry with his brother will be liable to judgment” (Matthew 21-26). Many of us can say we’ve never murdered. But who can say they’ve never been angry? Jesus isn’t tightening the screws; he’s showing that the law was always meant to shape not just our actions but our attitudes and reflexes toward one another.

Or take his teaching on enemies: loving those who love us is easy. But Jesus says, “Love your enemies” (Matthew 5:44). You can’t fight fire with fire. Responding to hate with more hate only burns the world down further. Jesus calls us to break the cycle.

Why? Because this is how God treats us. The sun rises and rain falls on the just and unjust alike (Matthew 5:45). Jesus is calling us back to the beautiful life we were created for.

And that brings us again to his final words: “You therefore must be perfect, as your heavenly Father is perfect.” Not perfect in our own strength, but in surrendering to his.

Here is the honest dialogue of a heart responding to that call: You say: “Jesus, I can’t.” Jesus says to you, “I have.” You say, “That’s great for you, but I still can’t.” Jesus says, “I know. That’s why I died, to covers your sins.” You say, “Thank you, Jesus, for forgiveness, but I still can’t live like you.” Jesus says, “I know. That’s why I give you my righteous life too.” You say, “Lord. I’m glad you see me that way, but I don’t live that way.” Jesus says, “My power is made perfect in weakness.” You say, “Then I’ m too weak. Help me!” Jesus says, “Now you’re beginning to understand. You were made to trust me.” Finally you say, “I give up.”
And Jeus says, “Good. ‘…unless a grain of wheat falls into the earth and dies, it remains alone; but if it dies, it bears much fruit’ (John 12:24).”

Be perfect as your heavenly Father is perfect, not by striving harder but by surrendering to him.