Jeremiah 35:16-19

16Because the sons of Jonadab the son of Rechab have performed the commandment of their father, which he commanded them; but this people hath not hearkened unto me: 17Therefore thus saith Yhwh God of Armies, the God of Israel; Behold, I will bring upon Judah and upon all the inhabitants of Jerusalem all the evil that I have pronounced against them: because I have spoken unto them, but they have not heard; and I have called unto them, but they have not answered.

18And Jeremiah said unto the house of the Rechabites, Thus saith Yhwh of Armies, the God of Israel; Because ye have obeyed the commandment of Jonadab your father, and kept all his precepts, and done according unto all that he hath commanded you: 19Therefore thus saith Yhwh of Armies, the God of Israel; Jonadab the son of Rechab shall not want a man to stand before me for ever.1