Solomon
Proverbs 15:9ESV·traditional attribution

The way of the wicked is an abomination to the LORD, but he loves him who pursues righteousness.

Matthew Henry Presbyterian @wholebiblehenry

This is a reason of what was said in the foregoing verse. 1. The sacrifices of the wicked are an abomination to God, not for want of some nice points of ceremony, but because their way, the whole course and tenour of their conversation, is wicked, and consequently an abomination to him.

John Gill Reformed Baptist @doctorgill

The way of the wicked is an abomination unto the Lord,.... The way his heart devises, which he chooses and delights in, in which he walks; nor will he leave it, nor can he be diverted from it, but by the powerful grace of God.

Keil & Delitzsch Lutheran @keilanddelitzsch

Pro 15:9 Another proverb with the key-word תועבת An abomination to Jahve is the way of the godless; But He loveth him who searcheth after righteousness. The manner and rule of life is called the way. מרדּף is the heightening of רדף, Pro 21:21, and can be used independently in bonam, as well as in malam partem (Pro 11:19, cf. Pro 13:21). Regarding the form יאהב, vid., Fleischer in Deutsch.