Solomon
Proverbs 16:13WEB·traditional attribution

Righteous lips are the delight of kings. They value one who speaks the truth.

Matthew Henry Presbyterian

Here is a further character of good kings, that they love and delight in those that speak right. 1. They hate parasites and those that flatter them, and are very willing that all about them should deal faithfully with them and tell them that which is true, whether it be pleasing or displeasing, both concerning persons and things, that every thing should be set in...

Keil & Delitzsch Lutheran

Pro 16:13 History is full of such warning examples, and therefore this proverb continues to hold up the mirror to princes. Well-pleasing to kings are righteous lips, And whoever speaketh uprightly is loved. Rightly the lxx ἀγαπᾶ, individ. plur., instead of the plur. of genus, מלכים; on the contrary, Jerome and Luther give to the sing.

Jamieson-Fausset-Brown Reformed

A specification of the general sentiment of Pro 16:12.