2 Samuel 2:26-28

2:26 Then Abner called out to Joab, “Must the sword devour forever? Don’t you realize that this will turn bitter in the end? When will you tell the people to turn aside from pursuing their brothers?” 2:27 Joab replied, “As surely as God lives, if you had not said this, it would have been morning before the people would have abandoned pursuit of their brothers!” 2:28 Then Joab blew the ram’s horn and all the people stopped in their tracks. They stopped chasing Israel and ceased fighting.