In Matthew 3:10, John the Baptist warns that every tree not bearing good fruit is cut down — adding judgment urgency to the same metaphor.

In Matthew 7:16-20, the same saying appears in the Sermon on the Mount, expanding 'by their fruits you will know them' to false prophets.

In Matthew 12:33, Jesus uses the same tree/fruit analogy in a dispute about Beelzebul — making the tree good or bad determines fruit.

In James 3:12, the same rhetorical question asks if a fig tree can bear olives — a direct parallel reinforcing that consistent nature determines fruit.

In Isaiah 5:4, God laments his vineyard yielding bad fruit — illustrating the principle that a tree is known by its fruit and that bad fruit reveals a bad source.

In Jeremiah 2:21, God laments that His choice vine became degenerate — a specific application of the tree/fruit principle to Israel's unfaithfulness.

In Proverbs 20:11, a child is known by his actions — a parallel wisdom principle that conduct reveals character.