2 Samuel 2:25-28

The men of Benjamin came to Abner, and all stood together at the top of the hill. Abner shouted to Joab, “Must the sword kill forever? Surely you must know this will only end in sadness! Tell the people to stop chasing their own brothers!” Then Joab said, “As surely as God lives, if you had not said anything, the people would have chased their brothers until morning.” Then Joab blew a trumpet, and his people stopped chasing the Israelites. They did not fight them anymore.