23 And it came to pass after two full years, that Absalom had sheepshearers in Baal-Hazor, which is beside Ephraim; and Absalom invited all the king's sons. 24 And Absalom came to the king, and said, Behold, now, thy servant has sheepshearers; let the king, I pray thee, and his servants go with thy servant. 25 And the king said to Absalom, No, my son, let us not all go, lest we be burdensome to thee. And he urged him, but he would not go; and he blessed him. 26 And Absalom said, If not, I pray thee, let my brother Amnon go with us. And the king said to him, Why should he go with thee? 27 But Absalom pressed him; and he let Amnon and all the king's sons go with him. 28 And Absalom commanded his servants, saying, Mark ye now when Amnon's heart is merry with wine, and when I say to you, Smite Amnon; then slay him, fear not: have not I commanded you? be courageous, and be valiant. 29 And the servants of Absalom did to Amnon as Absalom had commanded. Then all the king's sons arose, and they rode each upon his mule and fled.
Matthew Henry's Commentary on 2 Samuel 13:23-29
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.