Then Baasha son of Ahijah of the house of Issachar conspired against Nadab, and Baasha struck him down at Gibbethon of the Philistines while Nadab and all Israel were besieging Gibbethon.

In the twenty-seventh year of Judah’s King Asa, Zimri became king for seven days in Tirzah. Now the troops were encamped against Gibbethon of the Philistines.

Omri along with all Israel marched up from Gibbethon and besieged Tirzah.