2 Samuel 13:26-27
26-27Then Absalom said, "Well, if you won't come, at least let my brother Amnon come."
"And why," said the king, "should he go with you?" But Absalom was so insistent that he gave in and let Amnon and all the rest of the king's sons go.
28Absalom 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!"