⁴ 
An evildoer listens closely to wicked lips;
And a liar pays attention to a destructive and malicious tongue.

⁷ 
Excellent speech does not benefit a fool [who is spiritually blind],
Much less do lying lips benefit a prince.

²⁰ 
He who has a crooked mind finds no good,
And he who is perverted in his language falls into evil.^(A)

²⁷ 
He who has knowledge restrains and is careful with his words,
And a man of understanding and wisdom has a cool spirit (self-control, an even temper).^(A)
28 
Even a [callous, arrogant] fool, when he keeps silent, is considered wise;
When he closes his lips he is regarded as sensible (prudent, discreet) and a man of understanding.