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.
30 Now while they were on their way, news was given to David that Absalom had put to death all the sons of the king and that not one of them was still living.
Matthew Henry's Commentary on 2 Samuel 13:24-30
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.
Commentary on 2 Samuel 13:30-39
(Read 2 Samuel 13:30-39)
Jonadab was as guilty of Ammon's death, as of his sin; such false friends do they prove, who counsel us to do wickedly. Instead of loathing Absalom as a murderer, David, after a time, longed to go forth to him. This was David's infirmity: God saw something in his heart that made a difference, else we should have thought that he, as much as Eli, honoured his sons more than God.