2 Samuel 2:8-17

8But Abner the son of Ner, commander of Saul’s army, took Ishbosheth the son of Saul and brought him over to Mahanaim;

9and he made him king over Gilead, over the Ashurites, over Jezreel, over Ephraim, over Benjamin, and over all Israel.

10Ishbosheth, Saul’s son, was forty years old when he began to reign over Israel, and he reigned two years. Only 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.

12Now Abner the son of Ner, and the servants of Ishbosheth the son of Saul, went out from Mahanaim to Gibeon.

13And Joab the son of Zeruiah, and the servants of David, went out and met them by the pool of Gibeon. So they sat down, one on one side of the pool and the other on the other side of the pool.

14Then Abner said to Joab, “Let the young men now arise and compete before us.” And Joab said, “Let them arise.”

15So they arose and went over by number, twelve from Benjamin, followers of Ishbosheth the son of Saul, and twelve from the servants of David.

16And each one grasped his opponent by the head and thrust his sword in his opponent’s side; so they fell down together. Therefore that place was called the Field of Sharp Swords, which is in Gibeon.

17So there was a very fierce battle that day, and Abner and the men of Israel were beaten before the servants of David.