2 Samuel 2:12-16

12One day Abner led Ishbosheth’s troops from Mahanaim to Gibeon.

13About the same time, Joab son of Zeruiah led David’s troops out and met them at the pool of Gibeon. The two groups sat down there, facing each other from opposite sides of the pool.

14Then Abner suggested to Joab, “Let’s have a few of our warriors fight hand to hand here in front of us.” “All right,” Joab agreed.

15So twelve men were chosen to fight from each side—twelve men of Benjamin representing Ishbosheth son of Saul, and twelve representing David.

16Each one grabbed his opponent by the hair and thrust his sword into the other’s side so that all of them died. So this place at Gibeon has been known ever since as the Field of Swords.