2 Samuel 13:28-30

28Absalom instructed his servants, “Look! When Amnon is drunk and I say to you, ‘Strike Amnon down,’ kill him then and there. Don’t fear! Is it not I who have given you these instructions? Be strong and courageous!”

29So Absalom’s servants did to Amnon exactly what Absalom had instructed. Then all the king’s sons got up; each one rode away on his mule and fled.

30While they were still on their way, the following report reached David: “Absalom has killed all the king’s sons; not one of them is left!”