Jeremiah 35:2

Go unto the house of the Rechabites, a family descending from the tribe of the Kenites, with some prominent members, 2 Kings 10:15, and speak unto them, and bring them into the house of the Lord, into one of the chambers, the small cells built on the outside of the walls, used chiefly for storage purposes, 1 Kings 6:5, and give them wine to drink, offering them this intoxicant to put them to a test. Rechab, the father of Jonadab and the ancestor of the tribe, had given his children the command to abstain from wine in order to keep them in the simplicity of their forefathers and to protect them from moral decay.