Proverbs 18 7
Stupid people are caught out by what they say; their own words trap them.
Compare with other 3 random translations
AMP Proverbs 18:7A [self-confident] fool's mouth is his ruin, and his lips are a snare to himself.
NLT Proverbs 18:7The mouths of fools are their ruin; they trap themselves with their lips.
ERV Proverbs 18:7Fools hurt themselves when they speak. Their own words trap them.