14 Then Joab said, "I cannot linger with you." And he took three spears in his hand and thrust them through Absalom's heart, while he was still alive in the midst of the terebinth tree. 15 And ten young men who bore Joab's armor surrounded Absalom, and struck and killed him.
Matthew Henry's Commentary on 2 Samuel 18:14-15
Commentary on 2 Samuel 18:9-18
(Read 2 Samuel 18:9-18)
Let young people look upon Absalom, hanging on a tree, accursed, forsaken of heaven and earth; there let them read the Lord's abhorrence of rebellion against parents. Nothing can preserve men from misery and contempt, but heavenly wisdom and the grace of God.