2 Samuel 2:25-27
25 The people of Benjamin banded together to protect Abner, and they made their stand on top of a hill.
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.