28 Then Absalom commanded his servants, "Watch when Amnon's heart is merry with wine, and when I say to you, "Strike Amnon,' then kill him. Do not be afraid; have I not myself commanded you? Be courageous and valiant." 29 So the servants of Absalom did to Amnon as Absalom had commanded. Then all the king's sons rose, and each mounted his mule and fled.
Matthew Henry's Commentary on 2 Samuel 13:28-29
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.