2 Samuel 18:14-17

14But Joab declared, “I am not going to wait like this with you!” And he took three spears in his hand and thrust them through the heart of Absalom while he was still alive in the oak tree. 15And ten young men who carried Joab’s armor surrounded Absalom, struck him, and killed him.

16Then Joab blew the ram’s horn, and the troops broke off their pursuit of Israel because Joab had restrained them. 17They took Absalom, cast him into a large pit in the forest, and piled a huge mound of stones over him. Meanwhile, all the Israelites fled, each to his home.