2 Samuel 2:26-28
Abner (calling to Joab): 26 Are we to continue this killing forever? Don’t you see that this will come to a bitter end? How long until you order your forces to stop pursuing their brothers?
Joab: 27 I swear before the living God that if you had not said this, my forces would have pursued their Israelite brothers until morning.
28 Joab blew the trumpet to call off the attack against the men of Israel, and all pursuit and battle stopped.Read full chapter