Matthew 7:18
A good tree cannot bear bad fruit, and a bad tree cannot bear good fruit.
Berean Standard Bible
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Study note
Setting — Jesus speaks to the crowds and his disciples during the Sermon on the Mount, immediately following his declaration about good and bad trees. He addresses them at a moment of ethical instruction, reinforcing the link between inner nature and outward conduct.
The words — The Greek dunatai (is able) and poiein (to produce) anchor the verse’s claim about inherent capacity. Dendron (tree) and karpous (fruits) establish the biological metaphor that dictates the passage’s logical structure.
The thread — The text states that a fixed nature determines output, a pattern repeated in Galatians 5:17 where flesh and Spirit oppose each other, and 1 John 3:9 where a new birth prevents continued sin. Matthew 7:17 and 7:19 frame this verse by establishing the initial principle and its resulting judgment.
Why it lands — The text declares that moral origin dictates moral output, making external behavior a reliable indicator of internal reality. It asks a reader to verify their spiritual source before attempting to change their actions, recognizing that consistent fruit flows from nature rather than effort.
Drafted by a language model from the text, its original words and its cross-references, then checked against them. It can still be wrong: open the verse in the app to report it.
The Greek words
King James Version
A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.
Cross-references
- Galatians 5:17 For the flesh craves what is contrary to the Spirit, and the Spirit what is contrary to the flesh. They are opposed to each other, so that you do not do what you want.
- 1 John 3:9 Anyone born of God refuses to practice sin, because God’s seed abides in him; he cannot go on sinning, because he has been born of God.