Proverbs 26:9 extends the same idea: a proverb in a fool's mouth is like a thorn in a drunkard's hand—useless and dangerous.

Proverbs 17:7 agrees that fine speech is unbecoming to a fool, reinforcing that proverbs are wasted on fools.

Psalm 50:16-21 rebukes the wicked who recite God's statutes but hate instruction—like a fool speaking a proverb without understanding.