Psalms 12:4

12:4 They say, “We speak persuasively;

we know how to flatter and boast.

Who is our master?”

Psalms 73:8-9

73:8 They mock and say evil things;

they proudly threaten violence.

73:9 They speak as if they rule in heaven,

and lay claim to the earth.

Psalms 141:3

141:3 O Lord, place a guard on my mouth!

Protect the opening of my lips!

Proverbs 18:21

18:21 Death and life are in the power of the tongue,

and those who love its use will eat its fruit.

Proverbs 21:23

21:23 The one who guards his mouth and his tongue

keeps his life from troubles.