Solomon
Proverbs 17:15WEB·traditional attribution

He who justifies the wicked, and he who condemns the righteous, both of them alike are an abomination to Yahweh.

Keil & Delitzsch Lutheran

Pro 17:15 15 He that acquitteth the guilty and condemneth the righteous - An abomination to Jahve are they both. The proverb is against the partisan judge who is open to bribery, like Pro 24:24, cf. Isa 5:23, where, with reference to such, the announcement of punishment is emphatically made. רשׁע and צדּיק, in a forensic sense, are equivalent to sons (reus) and insons. גּם (cf. the Arab.

Matthew Henry Presbyterian

This shows what an offence it is to God, 1. When those that are entrusted with the administration of public justice, judges, juries, witnesses, prosecutors, counsel, do either acquit the guilty or condemn those that are not guilty, or in the least contribute to either; this defeats the end of government, which is to protect the good and punish the bad, Rom 13:3, Rom 13:4.

Jamieson-Fausset-Brown Reformed

abomination . . . Lord--as reversing His method of acting (Pro 3:32; Pro 12:2).