1 Kings 16:15-18

15In the twenty-seventh year of Asa king of Judah, Zimri reigned seven days in Tirzah. Now the people were encamped against Gibbethon, which [belonged] to the Philistines.

16And the people that were encamped heard say, Zimri has conspired, and has also smitten the king; and all Israel made Omri, the captain of the host, king over Israel that day in the camp.

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

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