14 "Everything in Israel that is specially set apart for the Lord also belongs to you. 15 "The firstborn of every mother, whether human or animal, that is offered to the Lord will be yours. But you must always redeem your firstborn sons and the firstborn of ceremonially unclean animals. 16 Redeem them when they are one month old. The redemption price is five pieces of silver (as measured by the weight of the sanctuary shekel, which equals twenty gerahs). 17 "However, you may not redeem the firstborn of cattle, sheep, or goats. They are holy and have been set apart for the Lord . Sprinkle their blood on the altar, and burn their fat as a special gift, a pleasing aroma to the Lord . 18 The meat of these animals will be yours, just like the breast and right thigh that are presented by lifting them up as a special offering before the altar. 19 Yes, I am giving you all these holy offerings that the people of Israel bring to the Lord . They are for you and your sons and daughters, to be eaten as your permanent share. This is an eternal and unbreakable covenant between the Lord and you, and it also applies to your descendants."
Matthew Henry's Commentary on Numbers 18:14-19
Commentary on Numbers 18:8-19
(Read Numbers 18:8-19)
All believers are spiritual priests, and God has promised to take care of them. Godliness has the promise of the life that now is. And from the provision here made for the priests, the apostle shows that it is the duty of christian churches to maintain their ministers. Scandalous maintenance makes scandalous ministers. The priests were to be wholly devoted to their ministry, not diverted from it, or disturbed in it, by worldly care or business. Also, that they might be examples of living by faith, not only in God's providence, but in his ordinances. The best should be offered for the first-fruits unto the Lord. Those who think to save, by putting God off with the refuse, deceive themselves, for God is not mocked.