Albert Barnes Commentary Proverbs 21:27

"The sacrifice of the wicked is an abomination: How much more, when he bringeth it with a wicked mind!" — Proverbs 21:27 (ASV)

A lower depth even than (Proverbs 15:8). The wicked man may connect his devotion with his guilt, offer his sacrifice and vow his vow (as men have done under paganism or corrupted Christianity) for success in the perpetration of a crime.