2 Samuel 13:29

26 Then said Absalom, If not, I pray thee, let my brother Amnon go with us. And the king said unto 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 unto you, Smite Amnon, then kill him; fear not; have not I commanded you? be courageous, and be valiant.

29 And the servants of Absalom did unto Amnon as Absalom had commanded. Then all the king’s sons arose, and every man gat him up upon his mule, and fled.

30 And it came to pass, while they were in the way, that the tidings came to David, saying, Absalom hath slain all the king’s sons, and there is not one of them left.

31 Then the king arose, and rent his garments, and lay on the earth; and all his servants stood by with their clothes rent.

32 And Jonadab, the son of Shimeah, David’s brother, answered and said, Let not my lord suppose that they have killed all the young men the king’s sons; for Amnon only is dead: for by the appointment of Absalom this hath been determined from the day that he forced his sister Tamar.