Charles Ellicott Commentary 1 Kings 16:25

"And Omri did that which was evil in the sight of Jehovah, and dealt wickedly above all that were before him." — 1 Kings 16:25 (ASV)

Did worse than all that were before him. —This phrase, used of Jeroboam in 1 Kings 14:9, may indicate, in addition to the acceptance and development of the old idolatry, some anticipation of the worse idolatry of Baal, formally introduced by Ahab. The “statutes of Omri” are referred to by Micah (Micah 6:16) in parallelism with the “works of the house of Ahab,” as the symbol of hardened and hopeless apostasy.