2 Samuel 20:10; 2 Samuel 20:23

10 Amasa was not on guard against the sword that Joab was holding in his other hand, and Joab stabbed him in the belly, and his insides spilled out on the ground. He died immediately, and Joab did not have to strike again. Then Joab and his brother Abishai went on after Sheba.

23 Joab was in command of the army of Israel; Benaiah son of Jehoiada was in charge of David's bodyguards;