Jeremiah 35:16-19

16Indeed, the sons of Jonadab the son of Rechab have observed the command of their father which he gave them, but this people has not listened to Me.’ ” ’

17Therefore thus says the Lord God of hosts, the God of Israel, ‘Behold (hear this), I am bringing on Judah and all the inhabitants of Jerusalem all the disaster that I have pronounced against them, because I have spoken to them, but they have not listened, and I have called to them, but they have not answered.’ ”

18Then Jeremiah said to the house of the Rechabites, “Thus says the Lord of hosts, the God of Israel, ‘Because you have obeyed the command of Jonadab your father and have kept all his commands and have done according to all that he commanded you,

19therefore thus says the Lord of hosts, the God of Israel, “Jonadab the son of Rechab shall never fail to have a man (descendant) to stand before Me always.” ’ ”