1 Kings 16:12-17
English Standard Version
Chapter 16
12Thus Zimri destroyed all the house of Baasha, according to the word of the Lord, which he spoke against Baasha by Jehu the prophet, 13for all the sins of Baasha and the sins of Elah his son, which they sinned and which they made Israel to sin, provoking the Lord God of Israel to anger with their idols. 14Now the rest of the acts of Elah and all that he did, are they not written in the Book of the Chronicles of the Kings of Israel?
15In the twenty-seventh year of Asa king of Judah, Zimri reigned seven days in Tirzah. Now the troops were encamped against Gibbethon, which belonged to the Philistines,
16and the troops who were encamped heard it said, "Zimri has conspired, and he has killed the king." Therefore all Israel made Omri, the commander of the army, king over Israel that day in the camp.
17So Omri went up from Gibbethon, and all Israel with him, and they besieged Tirzah.