Jehonadab in Easton's Bible Dictionary

Jehovah is liberal; or, whom Jehovah impels. (1.) A son of Shimeah, and nephew of David. It was he who gave the fatal wicked advice to Amnon, the heir to the throne (2 Sam. 13:3-6). He was very "subtil," but unprincipled. (2.) A son of Rechab, the founder of a tribe who bound themselves by a vow to abstain from wine (Jer. 35:6- 19). There were different settlements of Rechabites (Judg. 1:16; 4:11; 1 Chr. 2:55). (See RECHABITE -T0003080.) His interview and alliance with Jehu are mentioned in 2 Kings 10:15-23. He went with Jehu in his chariot to Samaria.