2 Samuel 2:24-28

24But Joab and Abishai pursued Abner, and as the sun was setting, they came to the hill of Ammah, near Giah on the way to the wasteland of Gibeon.

25Then the men of Benjamin rallied behind Abner. They formed themselves into a group and took their stand on top of a hill.

26Abner called out to Joab, “Must the sword devour forever? Don’t you realize that this will end in bitterness? How long before you order your men to stop pursuing their fellow Israelites?”

27Joab answered, “As surely as God lives, if you had not spoken, the men would have continued pursuing them until morning.”

28So Joab blew the trumpet, and all the troops came to a halt; they no longer pursued Israel, nor did they fight anymore.