Mark 10:18 Meaning: Why Does Jesus Say No One Is Good but God?

The word the man uses is agathos, the ordinary Greek word for “good.” It could mean excellent, useful, upright, or kind. He uses it as a polite title for a rabbi, the way someone today might call a teacher “good sir.” But Jesus takes the word and gives it its full weight.

Only God is truly agathos in the deepest sense. The man has used the word lightly, without realizing that the goodness of God is not a small thing. Jesus does not say “I am not good”, He asks the man to consider what he is really saying.

The phrase “no one is good except one” uses oudeis (no one) and heis (one). The word heis is emphatic: one single source of goodness. Jesus is not keeping goodness away from himself; he is pointing to the Father as the origin of every good thing. If he himself is good, it is because he shares in that one goodness.

Christians across traditions have read this verse in different ways, but with a common center.

Many see Jesus redirecting the man from a superficial compliment to the truth that only God is perfectly good. The Cambridge Bible notes that Jesus “repels it only in the superficial sense” of a polite title. He is not denying his own goodness.

Others hear a hint of Jesus’ divinity: if Jesus is good, and only God is good, then Jesus must be God. Matthew Gill and others argue that the verse actually proves Christ’s deity by showing that goodness belongs to the one God, whom the Son shares. Both readings seek to honor Jesus. The question Jesus asks is meant to lead us deeper, not to confuse us.

A common misreading is that Jesus is denying he is good, or even denying that he is God. Some hear “Why do you call me good? No one is good but God” as if Jesus says, “I am not good, so I am not God.”

In fact, Jesus is not denying his goodness. He is asking the man to think about what the word “good” really means when applied to a teacher, and to consider that the standard of true goodness is God himself. As Cambridge Bible notes, he repels the title only in the shallow way the man used it. Jesus will later show he is the one who can offer eternal life, which belongs to God alone.

This week, pay attention to the small ways you use the word “good.” It might be in a prayer, “God, you are good”, or when you say “good person” about yourself or someone else. The question Jesus asks the young man is also for you: do you know what you are saying?

When you call God good, stop and let that land. His goodness is not a mood or a passing attribute. It is the solid foundation under everything. And when you find yourself trying to be good enough to earn something from him, remember the rich young ruler. He had kept the rules and still walked away sad. Goodness that earns is a heavy burden. The goodness of God is a gift. You can rest in it.