Proverbs 17:4

An evildoer gives heed to lips of wickedness;

A liar gives ear to a destructive tongue.

Proverbs 17:7

Excellent lips are not fitting for a wicked fool,

Even less are lying lips for a noble man.

He who has a crooked heart finds no good,

And he who is perverted in his tongue falls into evil.

He who holds back his words has knowledge,

And he who has a cool spirit is a man of discernment.

Even an ignorant fool, when he keeps silent, is considered wise;

When he closes his lips, he is considered understanding.