1 Kings 16:17-22

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

18And when Zimri saw that the city was taken, he went into the citadel of the king's house and burned the king's house over him with fire and died,

19because of his sins that he committed, doing evil in the sight of the Lord, walking in the way of Jeroboam, and for his sin which he committed, making Israel to sin.

20Now the rest of the acts of Zimri, and the conspiracy that he made, are they not written in the Book of the Chronicles of the Kings of Israel?

21Then 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.

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