Jonadab in Wikipedia

Jonadab is the name of two men in the Hebrew Bible: In 2 Samuel 13:3 Jonadab son of Shimeah is described as a 'very shrewd man' (NIV). He suggests to Amnon the plan he uses to seduce Tamar, and is later implicated in the murder of Amnon by Absalom. In the Book of Jeremiah, Jonadab is the name given to Jehonadab. Jehovah's Witnesses use the terms Jehonadab and Jonadab to refer to a class of people who survive Armageddon and live forever on earth.