Solomon
Proverbs 16:12ESV·traditional attribution

It is an abomination to kings to do evil, for the throne is established by righteousness.

Matthew Henry Presbyterian @wholebiblehenry

Here is, 1. The character of a good king, which Solomon intended not for his own praise, but for instruction to his successors, his neighbours, and the viceroys under him. A good king not only does justice, but it is an abomination to him to do otherwise.

John Gill Reformed Baptist @doctorgill

It is an abomination to kings to commit wickedness,.... The Targum is, "the abomination of kings are they that work wickedness.'' It should be an abomination to kings to commit wickedness themselves, and those that do it should be abhorred by them, or they should show their resentment at it by removing them from their presence, or by punishing them: and though there have been...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Rulers are rightly expected, by their position, to hate evil; for their power is sustained by righteousness.