Proverbs 16:13 KJV
Righteous lips are the delight of kings; and they love him that speaketh right.
Proverbs 16:13, King James Version
In context
12 It is an abomination to kings to commit wickedness: for the throne is established by righteousness.
13 Righteous lips are the delight of kings; and they love him that speaketh right.
14 The wrath of a king is as messengers of death: but a wise man will pacify it.