Matthew 15:10-11 Meaning: The Call to Hear and Understand

The word Jesus uses for “hear” (akouō) means more than letting sound hit your eardrums. It carries the sense of listening with intention, paying attention to what someone is saying. This is the kind of hearing that changes you, you don't just hear, you take it in and let it land. And then he says “understand” (suniēmi), a word that literally means to bring things together in your mind, to piece it together. Jesus is asking for his listeners to connect what they already know with what he is saying now, to grasp the deeper truth behind the surface.

The verb “defiles” (koinoō) is a striking word. It originally meant to make something common, ordinary, unholy, unfit for the temple. The Pharisees thought you could become common by touching a common thing, like unwashed hands. Jesus flips it. What makes us common, unholy, is not what goes into us but what comes out, the words and attitudes that spring from within. This shifts the whole picture of sin: it is not caught from the outside but born from the inside.

Across Christian traditions, this passage marks a turning point. Reformed writers like Calvin and Matthew Henry emphasize that Jesus redirects attention from human traditions to the heart's condition. Methodist commentator Adam Clarke underscores the command to “hear and understand” as a call to active, engaged faith, not passive attendance. The Anglican Cambridge Bible describes this as the great controversy of the New Testament: the religion of the letter versus the religion of the heart. While some traditions have used this verse to discuss dietary laws, the consistent reading is that Jesus is prioritizing inner transformation over outward observance. What unites these perspectives is the conviction that true defilement is moral, not ritual, it originates in the heart.

A common misreading is to think Jesus abolishes all concern with outward actions, that what you eat or do with your body never matters. But that misses his point. He is answering a specific charge about the tradition of hand-washing, not giving a blanket statement that the body is irrelevant to holiness. In fact, he then lists specific sins that come from the heart: evil thoughts, murder, adultery, theft. Those are outward actions too. The correction is this: Jesus is not saying outward actions don't matter, but that they matter because they express what is inside you. The heart is the source, not the kitchen sink.

This passage invites you to stop worrying about whether your hands are clean in the way others expect and start paying attention to what your heart is producing. This week, try a simple practice: each evening, take a few moments to think back on the words you spoke that day. Which ones did you wish you could take back? Those words came from somewhere, your heart. Instead of defending yourself or making excuses, bring that heart to Jesus. Ask him to forgive what needs forgiving and to change what needs changing. Real cleanliness works from the inside out, and he is the one who does that work.