2 Samuel 20:10; 2 Samuel 20:23

10 Now Amasa was not on his guard against the sword that [was] in Joab's hand, and he struck him with it into the stomach, and his entrails poured out to the ground. He did not strike him again, and he died. Then Joab and Abishai his brother pursued after Sheba the son of Bicri.

23 Now Joab [was] over all the army of Israel and Benaiah the son of Jehoiada [was] over the Carites and over the Pelethites.