2 Samuel 13:5 WBT

³  But Amnon had a friend, whose name [was] Jonadab, the son of Shimeah David's brother: and Jonadab [was] a very subtil man.

⁴  And he said to him, Why [art] thou, [being] the king's son, pining from day to day? wilt thou not tell me? And Amnon said to him, I love Tamar, my brother Absalom's sister.

⁵  And Jonadab said to him, Lay thee down on thy bed, and make thyself sick: and when thy father cometh to see thee, say to him, I pray thee, let my sister Tamar come, and give me food, and dress the food in my sight, that I may see [it], and eat [it] at her hand.

⁶  So Amnon lay down and made himself sick: and when the king came to see him, Amnon said to the king, I pray thee, let Tamar my sister come, and make for me a couple of cakes in my sight, that I may eat at her hand.

⁷  Then David sent home to Tamar, saying, Go now to thy brother Amnon's house, and dress meat for him.