2 Samuel 4:7

4:7 They had entered the house while Ish-bosheth was resting on his bed in his bedroom. They mortally wounded him and then cut off his head. Taking his head, they traveled on the way of the Arabah all that night.

2 Samuel 4:12

4:12 So David issued orders to the soldiers and they put them to death. Then they cut off their hands and feet and hung them near the pool in Hebron. But they took the head of Ish-bosheth and buried it in the tomb of Abner in Hebron.

2 Samuel 8:2

8:2 He defeated the Moabites. He made them lie on the ground and then used a rope to measure them off. He put two-thirds of them to death and spared the other third. The Moabites became David’s subjects and brought tribute.

2 Samuel 20:22

20:22 Then the woman went to all the people with her wise advice and they cut off Sheba’s head and threw it out to Joab. Joab blew the trumpet, and his men dispersed from the city, each going to his own home. Joab returned to the king in Jerusalem.