Jehonadab (Hebrew: יְהוֹנָדָב; "YHWH is willing"; Latin: Jonadab) was the son of Rechab. He is mentioned in 2 Kings 10:15-31. A Kenite, he was a supporter of Jehu, son of Nimshi, in the elimination of the house of Ahab and in suppressing worship of Baal throughout Samaria. Jehu seeks his support at a meeting in the desert and assures Jehonadab of his "zeal for the Lord".[1]
In the Book of Jeremiah he is called both Jehonadab and Jonadab.[2]
He prohibited his followers from drinking alcohol, and is credited with founding the Rechabites. He also commanded that they live in tents, rather than houses. At Jeremiah 35:6-19, his followers are commended for adhering to his instructions, and God promises that his lineage will continue.