2 Samuel 2:8-12

But Abner the son of Ner, captain of Saul’s host, took Ish-bosheth the son of Saul, and brought him over to Mahanaim;

And made him king over Gilead, and over the Ashurites, and over Jezreel, and over Ephraim, and over Benjamin, and over all Israel.

Ish-bosheth Saul’s son was forty years old when he began to reign over Israel, and reigned two years. But the house of Judah followed David.

And the time that David was king in Hebron over the house of Judah was seven years and six months.

And Abner the son of Ner, and the servants of Ish-bosheth the son of Saul, went out from Mahanaim to Gibeon.