1 Kings 16:17-22

17Then Omri went up from Gibbethon, and all Israel with him, and they besieged Tirzah.

18When Zimri saw that the city was taken, he went into the fortress of the king’s palace; and while inside, he set fire to the king’s palace and died,

19because of the sins he had committed, doing evil in the sight of the Lord, by walking in the way of Jeroboam, and because of his sin he caused Israel to sin.

20Now as for the rest of the acts of Zimri, and his [treasonous] conspiracy which he committed, are they not written in the Book of the Chronicles of the Kings of Israel?

21Then the people of Israel were divided in half. Half of the people followed Tibni the son of Ginath, to make him king, and the other half followed Omri.

22But the people who followed Omri prevailed over the people who followed Tibni the son of Ginath. So Tibni died and Omri became king.