14 Joab said, "I can't waste my time with you." He then grabbed three knives and stabbed Absalom in the heart while he was still alive in the tree;

Matthew Henry's Commentary on 2 Samuel 18:14

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.