Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Jonadab
Usage: A man of the tribe of Judah living at the time of United Monarchy, first mentioned at 2Sa.13.3; son of: Shimeah (H8093); also called Jonathan at 2Sa.21.21; 1x27.32; § Jonadab or Jehonadab = "Jehovah is willing" 1) a son of Rechab, chief of the Rechabites, in the time of Jehu and Ahab 2) a nephew of David