2 Samuel 13:1, 14, 28-29

In the course of time, Amnon son of David fell in love with Tamar, the beautiful sister of Absalom son of David.

But he refused to listen to her, and since he was stronger than she, he raped her.

Absalom ordered his men, “Listen! When Amnon is in high spirits from drinking wine and I say to you, ‘Strike Amnon down,’ then kill him. Don’t be afraid. Haven’t I given you this order? Be strong and brave.” So Absalom’s men did to Amnon what Absalom had ordered. Then all the king’s sons got up, mounted their mules and fled.