2 Samuel 2:23-28

When he refused to quit, Abner struck him in the belly with the blunt end of his spear so hard that it came out his back. Asahel fell to the ground and died at once. Everyone who arrived at the spot where Asahel fell and died stood and gaped—Asahel dead! But Joab and Abishai kept up the chase after Abner. As the sun began to set, they came to the hill of Ammah that faced Giah on the road to the backcountry of Gibeon. The Benjaminites had taken their stand with Abner there, deployed strategically on a hill. Abner called out to Joab, “Are we going to keep killing each other till doomsday? Don’t you know that nothing but bitterness will come from this? How long before you call off your men from chasing their brothers?” “As God lives,” said Joab, “if you hadn’t spoken up, we’d have kept up the chase until morning!” Then he blew the ram’s horn trumpet and the whole army of Judah stopped in its tracks. They quit chasing Israel and called off the fighting.