2 Samuel 13:25-29

But the king said to Absalom, “No, my son, we should not all go, so that we will not be a burden to you.” Though he urged him, he would not go; but he blessed him.

Then Absalom said, “If not, please have my brother Amnon go with us.” But the king said to him, “Why should he go with you?”

Nevertheless Absalom urged him, so he let Amnon and all the king’s sons go with him.

Then Absalom commanded his servants, saying, “See now, when Amnon’s heart is cheerful with wine, and I say to you, ‘Strike Amnon,’ then put him to death. Do not fear; have I not commanded you myself? Be courageous and be valiant.”

And the servants of Absalom did to Amnon just as Absalom had commanded. Then all the king’s sons got up and each mounted his mule and fled.