Jehonadab

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.