21 But when King David had news of all these things he was very angry; but he did not make trouble for Amnon his son, for he was dear to David, being his oldest son. 22 But Absalom said nothing to his brother Amnon, good or bad: for he was full of hate for him, because he had taken his sister Tamar by force. 23 Now after two full years, Absalom had men cutting the wool of his sheep in Baal-hazor, which is near Ephraim: and he sent for all the king's sons to come to his feast. 24 And Absalom came to the king and said, See now, your servant is cutting the wool of his sheep; will the king and his servants be pleased to come? 25 And the king said to Absalom, No, my son, let us not all go, or the number will be over-great for you. And he made his request again, but he would not go, but he gave him his blessing. 26 Then Absalom said, If you will not go, then let my brother Amnon go with us. And the king said to him, Is there any reason for him to go with you? 27 But Absalom went on requesting him till he let Amnon and all the king's sons go with him. And Absalom made a great feast like a feast for a king. 28 Now Absalom had given orders to his servants, saying, Now take note when Amnon's heart is glad with wine; and when I say to you, Make an attack on Amnon, then put him to death without fear: have I not given you orders? be strong and without fear. 29 So Absalom's servants did to Amnon as Absalom had given them orders. Then all the king's sons got up, and every man got on his beast and went in flight.
Matthew Henry's Commentary on 2 Samuel 13:21-29
Commentary on 2 Samuel 13:21-29
(Read 2 Samuel 13:21-29)
Observe the aggravations of Absalom's sin: he would have Ammon slain, when least fit to go out of the world. He engaged his servants in the guilt. Those servants are ill-taught who obey wicked masters, against God's commands. Indulged children always prove crosses to godly parents, whose foolish love leads them to neglect their duty to God.