2 Samuel 18:15 (BSB)

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

From 2 Samuel 18. Also in the ESV.

Commentary on 2 Samuel 18:15

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on 2 Samuel 18:9-18: Here is Absalom quite at a loss, at his wit's end first, and then at his life's end. He that began the fight, big with the expectation of triumphing over David himself, with whom, if he had had him in his power, he would not have dealt gently, is now in the greatest consternation, when he meets the servants of David, Sa2 18:9.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on 2 Samuel 18:15: And ten young men that bare Joab's armour,.... That waited upon him in the battle, to carry his armour, and supply him with it as he should have occasion; these, by his orders: compassed about, and smote Absalom, and slew him; they enclosed him that none might rescue him, and smote him with their spears or swords, or whatsoever armour they had, until it was...
• Jamieson-Fausset-Brown (Reformed), Commentary Critical and Explanatory on the Whole Bible on 2 Samuel 18:14-32: HE IS SLAIN BY JOAB. (2Sa. 18:14-32) he took three darts . . . and thrust them through the heart of Absalom--The deed, partially done by Joab, was completed by his bodyguard. Being a violation of the expressed wish, as well as of all the fond paternal feelings of David, it must have been deeply offensive to the king, nor was it ever forgotten (Kg1...
• Adam Clarke (Methodist), Clarke's Commentary on the Bible on 2 Samuel 18:15: Ten young men - smote Absalom and slew him - That is, they all pierced the body; but there could be no life in it after three darts had been thrust through the heart: but they added as much as would have killed him had he been alive.