Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Jonadab
Usage: A man living at the time of Divided Monarchy, first mentioned at 2Ki.10.15; son of: Rechab (H7394H); also called Jehonadab at 2Ki.10.15,23; Also named: yo.na.dav (יוֹנָדָב "Jonadab" H3122H) § 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