Solomon
Proverbs 18:6ESV·traditional attribution

A fool’s lips walk into a fight, and his mouth invites a beating.

Matthew Henry Presbyterian @wholebiblehenry

Solomon has often shown what mischief bad men do to others with their ungoverned tongues; here he shows what mischief they do to themselves. 1. They embroil themselves in quarrels: A fool's lips, without any cause or call, enter into contention, by advancing foolish notions which others find themselves obliged to oppose, and so a quarrel is begun, or by giving provoking language, which will...

Commenting on Proverbs 18:6-7

John Gill Reformed Baptist @doctorgill

A fool's lips enter into contention,.... That is, between others, when he has nothing to do with it; but he must be meddling, and make himself a party in the contention, which is an argument of his folly; he says things which occasion disputes, raise contentions among men, and provoke to wrath and anger.

Jamieson-Fausset-Brown Reformed @jfbcommentary

The quarrelsome bring trouble on themselves. Their rash language ensnares them (Pro 6:2).