III. Mercy is here promised to the family of the Rechabites for their steady and unanimous adherence to the laws of their house. Though it was only for the shaming of Israel that their constancy was tried, yet, being unshaken, it was found unto praise, and honour, and glory; and God takes occasion from it to tell them that he had favours in reserve for them (v. 18, 19) and that they should have the comfort of them. 1. That the family shall continue as long as any of the families of Israel, among whom they were strangers and sojourners. it shall never want a man to inherit what they had, though they had no inheritance to leave. Note, Sometimes those that have the smallest estates have the most numerous progeny; but he that sends mouths will be sure to send meat. 2. That religion shall continue in the family: "He shall not want a man to stand before me, to serve me." Though they are neither priests nor levites, nor appear to have had any post in the temple service, yet in a constant course of regular devotion, they stand before God, to minister to him. Note, (1.) The greatest blessing that can be entailed upon a family is to have the worship of God kept up in it from generation to generation. (2.) Temperance, self-denial, and mortification to the world, do very much befriend the exercises of piety, and help to transmit the observance of them to posterity. The more dead we are to the delights of sense the better we are disposed for the service of God; but nothing is more fatal to the entail of religion in a family than pride and luxury.