Proverbs 18:4-6

Authorized (King James) Version

⁴ The words of a man’s mouth are as deep waters,
    and the wellspring of wisdom as a flowing brook.

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.