2 Samuel 2:14-16

2:14 Abner said to Joab, “Let the soldiers get up and fight before us.” Joab said, “So be it!”

2:15 So they got up and crossed over by number: twelve belonging to Benjamin and to Ish-bosheth son of Saul, and twelve from the servants of David. 2:16 As they grappled with one another, each one stabbed his opponent with his sword and they fell dead together. So that place is called the Field of Flints; it is in Gibeon.

2 Samuel 2:26

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?”