2 Samuel 18:6-17

6So the people went out into the field against Israel: and the battle was in the forest of Ephraim. 7And the people of Israel were smitten there before the servants of David, and there was a great slaughter there that day of twenty thousand men. 8For the battle was there spread over the face of all the country; and the forest devoured more people that day than the sword devoured.

9And Absalom chanced to meet the servants of David. And Absalom was riding upon his mule, and the mule went under the thick boughs of a great oak, and his head caught hold of the oak, and he was taken up between heaven and earth; and the mule that was under him went on. 10And a certain man saw it, and told Joab, and said, Behold, I saw Absalom hanging in an oak. 11And Joab said unto the man that told him, And, behold, thou sawest it, and why didst thou not smite him there to the ground? and I would have given thee ten pieces of silver, and a girdle. 12And the man said unto Joab, Though I should receive a thousand pieces of silver in my hand, yet would I not put forth my hand against the king’s son: for in our hearing the king charged thee and Abishai and Ittai, saying, Beware that none touch the young man Absalom. 13Otherwise if I had dealt falsely against his life (and there is no matter hid from the king), then thou thyself wouldest have set thyself against me. 14Then said Joab, I may not tarry thus with thee. And he took three darts in his hand, and thrust them through the heart of Absalom, while he was yet alive in the midst of the oak. 15And ten young men that bare Joab’s armor compassed about and smote Absalom, and slew him.

16And Joab blew the trumpet, and the people returned from pursuing after Israel; for Joab held back the people. 17And they took Absalom, and cast him into the great pit in the forest, and raised over him a very great heap of stones: and all Israel fled every one to his tent.