So during Asa’s twenty-seventh year as king of Judah, Zimri became king of Israel and ruled in Tirzah seven days. The army of Israel was camped near Gibbethon, a Philistine town.
Baasha son of Ahijah, from the tribe of Issachar, made plans to kill Nadab. Nadab and all Israel were attacking the Philistine town of Gibbethon, so Baasha killed Nadab there.
The men in the camp heard that Zimri had made secret plans against King Elah and had killed him. So that day in the camp they made Omri, the commander of the army, king over Israel.