2 Samuel 2:8-15

⁸Now Abner the son of Ner, commander of Saul's army, had taken Ish-bo'sheth the son of Saul, and brought him over to Mahana'im; ⁹and he made him king over Gilead and the Ash'urites and Jezreel and E'phraim and Benjamin and all Israel. ¹⁰Ish-bo'sheth, Saul's son, was forty years old when he began to reign over Israel, and he reigned two years. But the house of Judah followed David. ¹¹And the time that David was king in Hebron over the house of Judah was seven years and six months.

¹²Abner the son of Ner, and the servants of Ish-bo'sheth the son of Saul, went out from Mahana'im to Gibeon. ¹³And Jo'ab the son of Zeru'iah, and the servants of David, went out and met them at the pool of Gibeon; and they sat down, the one on the one side of the pool, and the other on the other side of the pool. ¹⁴And Abner said to Jo'ab, "Let the young men arise and play before us." And Jo'ab said, "Let them arise." ¹⁵Then they arose and passed over by number, twelve for Benjamin and Ish-bo'sheth the son of Saul, and twelve of the servants of David.