Amnon was so frustrated because of his sister Tamar that he made himself ill, for she was a virgin, and it seemed hard to Amnon to do anything to her.

Jonadab then said to him, “Lie down on your bed and pretend to be ill; when your father comes to see you, say to him, ‘Please let my sister Tamar come and give me some food to eat, and let her prepare the food in my sight, that I may see it and eat from her hand.’”

So Amnon lay down and pretended to be ill; when the king came to see him, Amnon said to the king, “Please let my sister Tamar come and make me a couple of cakes in my sight, that I may eat from her hand.”