Jeremiah 35:18-19

Then Jeremiah said to the Recabites, “This is what the LORD All-Powerful, the God of Israel, says: ‘You have obeyed the commands of your ancestor Jonadab and have followed all of his teachings; you have done everything he commanded.’ So this is what the LORD All-Powerful, the God of Israel, says: ‘There will always be a descendant of Jonadab son of Recab to serve me.’ ”