Luke 6:43

Luke 6:43, in plain English

Jesus said, 'A good tree doesn't produce bad fruit, and a bad tree can't produce good fruit.' What you are on the inside shows on the outside.

Why it's here

This is about authenticity. You can't fake true spiritual life any more than a thorn bush can fake being an apple tree.

Who's speaking

Jesus uses nature to teach about character and its visible results.

Where it sits in the story

If you want to change your behavior, start with your heart. What comes out of your life is a direct reflection of what's growing inside. Let Jesus transform the roots, and the fruit will follow.

The scholarly reading

The tree-and-fruit metaphor (dendron kalon/sapron — "good/rotten tree") establishes a principle of moral consistency: the inner nature of a person (tree) inevitably produces corresponding external behavior (fruit).

Language and setting

This teaching shifts from outward behavior to inner character, arguing that moral transformation must begin internally. External conformity without inner change is futile.

Voice

Jesus teaches a proverbial truth about the connection between character and conduct.

Significance

The tree-fruit metaphor is a common wisdom motif that Jesus applies to spiritual formation. Changed behavior requires changed hearts — you cannot produce good fruit from a corrupt root.

41Why do you look at the speck in your brother’s eye but fail to notice the beam in your own eye?

42How can you say, ‘Brother, let me take the speck out of your eye,’ while you yourself fail to see the beam in your own eye? You hypocrite! First take the beam out of your own eye, and then you will see clearly to remove the speck from your brother’s eye.

43No good tree bears bad fruit, nor does a bad tree bear good fruit.

44For each tree is known by its own fruit. Indeed, figs are not gathered from thornbushes, nor grapes from brambles.

45The good man brings good things out of the good treasure of his heart, and the evil man brings evil things out of the evil treasure of his heart. For out of the overflow of the heart the mouth speaks.

Read all of Luke 6 — Blessed are the poor; woe to the rich. Jesus delivers his version of the great sermon and demands a love so radical it includes your enemies.