2 Samuel 2:15-17

There went over twelve of Benjamin Ish-bosheth's men were still most forward to begin hostilities. They caught, &c. That is, each of the servants of David last mentioned, or every one of both sides caught the man that was his opposite; by the head That is, by the hair of the head, which they wore very long in those days. And thrust his sword into his fellow's side Killed his opponent. So they fell down together Either all the twelve men of Benjamin, slain by the servants of David, or else the whole four and twenty fell down dead together. That place was called Hel-kath-hazzurim Or, The field of rocks, that is, of men who stood like rocks, immoveable, each one dying on the spot where he fought. There was a sore battle that day The men of Israel, it seems, enraged at the loss of their valiant men, began a general battle.