In 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,
Baasha the son of Ahijah, of the house of Issachar, conspired against him; and Baasha struck him down at Gibbethon, which belonged to the Philistines; for Nadab and all Israel were laying siege to Gibbethon.
and 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.