1 Kings 16:30-33

Ahab the son of Omri did evil in the sight of the LORD more than all who were before him. It came about, as though it had been a trivial thing for him to walk in the sins of Jeroboam the son of Nebat, that he married Jezebel the daughter of Ethbaal king of the Sidonians, and went to serve Baal and worshiped him. So he erected an altar for Baal in the house of Baal which he built in Samaria. Ahab also made the Asherah. Thus Ahab did more to provoke the LORD God of Israel than all the kings of Israel who were before him.