28 Absalom prepared a banquet fit for a king. Then he instructed his servants, "Look sharp, now. When Amnon is well into the sauce and feeling no pain, and I give the order 'Strike Amnon,' kill him. And don't be afraid - I'm the one giving the command. Courage! You can do it!" 29 Absalom's servants did to Amnon exactly what their master ordered. All the king's sons got out as fast as they could, jumped on their mules, and rode off.
30 While they were still on the road, a rumor came to the king: "Absalom just killed all the king's sons - not one is left!" 31 The king stood up, ripped his clothes to shreds, and threw himself on the floor. All his servants who were standing around at the time did the same. 32 Just then, Jonadab, his brother Shimeah's son, stepped up. "My master must not think that all the young men, the king's sons, are dead. Only Amnon is dead. This happened because of Absalom's outrage since the day that Amnon violated his sister Tamar. 33 So my master, the king, mustn't make things worse than they are, thinking that all your sons are dead. Only Amnon is dead." 34 Absalom fled. Just then the sentry on duty looked up and saw a cloud of dust on the road from Horonaim alongside the mountain. He came and told the king, "I've just seen a bunch of men on the Horonaim road, coming around the mountain." 35 Then Jonadab exclaimed to the king, "See! It's the king's sons coming, just as I said!" 36 He had no sooner said the words than the king's sons burst in - loud laments and weeping! The king joined in, along with all the servants - loud weeping, many tears. 37 David mourned the death of his son a long time. 38 He was there three years.
Matthew Henry's Commentary on 2 Samuel 13:28-38
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.