Jonadab told him, “Lie down on your bed and pretend you are ill. When your father comes to see you, say to him, ‘Please let my sister Tamar come and give me something to eat. Let her prepare it in my sight so I may watch her and eat it from her hand.’”
We have here a particular account of the abominable wickedness of Amnon in ravishing his sister, a subject not fit to be enlarged upon nor indeed to be mentioned without blushing, that ever any man should be so vile, especially that a son of David should be so.
Commenting on 2 Samuel 13:1-20
And Jonadab said unto him,.... Being a subtle man, he presently formed a scheme to relieve him, and open a way for the enjoyment of what he desired: lay thee down on thy bed, and make thyself sick; feign thyself sick, pretend that thou art so, by lying down on the bed, and making complaints of one kind or another: and when thy father cometh...
And Jonadab said unto him, Lay thee down on thy bed, and make thyself sick: and when thy father cometh to see thee, say unto him, I pray thee, let my sister Tamar come, and give me meat, and dress the meat in my sight, that I may see [it], and eat [it] at her hand.