Matthew Henry and continuators on Proverbs 16:12

12 It is an abomination to kings to commit wickedness: for the throne is established by righteousness.

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. He hates the thought of doing wrong and perverting justice; he not only abhors the wickedness done by others, but abhors the wickedness done by others, but abhors to do any himself, though, having power, he might easily and safety do it. 2. The comfort of a good king: His throne is established by righteousness. He that makes conscience of using his power aright shall find that to be the best security of his government, both as it will oblige people, make them easy, and keep them in the interest of it, and as it will obtain the blessing of God, which will be a firm basis to the throne and a strong guard about it.