2 Samuel 18:13-17

Otherwise, if I had dealt treacherously against his life (and there is nothing hidden from the king), then you yourself would have avoided me.”

Then Joab said, “I will not waste time here with you.” So he took three spears in his hand and thrust them through the heart of Absalom while he was still alive in the midst of the oak.

And ten young men who carried Joab’s armor gathered around and struck Absalom and killed him.

Then Joab blew the trumpet, and the people returned from pursuing Israel, for Joab restrained the people.

And they took Absalom and threw him into a deep pit in the forest, and erected over him a very large pile of stones. And all Israel fled, each to his own tent.