Have you ever wanted something so badly that you become ill over it? Look at this verse:
2And Amnon was so tormented that he made himself ill because of his sister Tamar, for she was a virgin, and it seemed impossible to Amnon to do anything to her. (2 Samuel 13:2–ESV)
Something about Tamar had bitten Amnon and was holding on like a mad lab rat. Amnon’s life, it turned out, depended upon his coming up with a plan to stop the hungry thoughts. Sin was crouching for Tamar’s couching. Who needs enemies when you can get a dab like Jonadab?
3 But Amnon had a friend, whose name was Jonadab…and Jonadab was a very crafty man. (2 Samuel 13:3–ESV)