1 Kings 16:21-27

Then the people of Israel were divided into two parts. Half of the people followed Tibni the son of Ginath, to make him king, and half followed Omri. But the people who followed Omri overcame the people who followed Tibni the son of Ginath. So Tibni died, and Omri became king. In the thirty-first year of Asa king of Judah, Omri began to reign over Israel, and he reigned for twelve years; six years he reigned in Tirzah. He bought the hill of Samaria from Shemer for two talents of silver, and he fortified the hill and called the name of the city that he built Samaria, after the name of Shemer, the owner of the hill. Omri did what was evil in the sight of the LORD, and did more evil than all who were before him. For he walked in all the way of Jeroboam the son of Nebat, and in the sins that he made Israel to sin, provoking the LORD, the God of Israel, to anger by their idols. Now the rest of the acts of Omri that he did, and the might that he showed, are they not written in the Book of the Chronicles of the Kings of Israel?