13 Righteous lips are the delight of kings. They value one who speaks the truth.
Proverbs 16:13 Cross References - WEB
Psalms 101:5-7
5 I will silence whoever secretly slanders his neighbor. I won’t tolerate one who is arrogant and conceited.
6 My eyes will be on the faithful of the land, that they may dwell with me. He who walks in a perfect way, he will serve me.
7 He who practices deceit won’t dwell within my house. He who speaks falsehood won’t be established before my eyes.
Proverbs 14:35
35 The king’s favor is toward a servant who deals wisely, but his wrath is toward one who causes shame.
Proverbs 22:11
11 He who loves purity of heart and speaks gracefully is the king’s friend.