Proverbs 18:6 KJV

A fool’s lips enter into contention, and his mouth calleth for strokes.
Proverbs 18:6, King James Version

In context

5 It is not good to accept the person of the wicked, to overthrow the righteous in judgment.

6 A fool’s lips enter into contention, and his mouth calleth for strokes.

7 A fool’s mouth is his destruction, and his lips are the snare of his soul.