Jeremiah 35:19

19. Shall not want a man to stand before me, etc. The phrase “stand before me” may be technical and liturgical, as a writer in Smith’s Dictionary suggests, and this may have been fulfilled in that the Rechabites became in some way incorporated into the tribe of Levi. (See the title of Psalm lxxii, in the Septuagint: “To David of the sorts of Jonadab, and the first who were taken captive.”) A son of Rechab is mentioned in Nehemiah 3:14, in connexion with priests and Levites. But the better explanation is, that it means simply divine care. Existence and service are suggested, but not necessarily sacerdotal service.