Here we have,

I.Further directions concerning the dedicating of their firstborn to God. 1. The firstlings of their cattle were to be dedicated to God, as part of their possessions. Those of clean beasts - calves, lambs, and kids - if males, were to be sacrificed, Exo 22:30; Num 18:17, Num 18:18. Those of unclean beasts, as colts, were to be redeemed with a lamb, or knocked on the head. For whatsoever is unclean (as we all are by nature), if it be not redeemed, will be destroyed, Exo 13:11, Exo 13:13. 2. The firstborn of their children were to be redeemed, and by no means sacrificed, as the Gentiles sacrificed their children to Moloch. The price of the redemption of the firstborn was fixed by the law (Num 18:16) at five sheckles. We were all obnoxious to the wrath and curse of God; by the blood of Christ we are redeemed, that we may be joined to the church of the firstborn. They were to redeem their children, as well as the firstlings of the unclean beasts, for our children are by nature polluted. Who can bring a clean thing out of an unclean?

II.Further directions concerning the catechising of their children, and all those of the rising generation, from time to time, in this matter. It is supposed that, when they saw all the firstlings thus devoted, they would ask the meaning of it, and their parents and teachers must tell them (Exo 13:14-16) that God's special propriety in their firstborn, and all their firstlings, was founded in his special preservation of them from the sword of the destroying angel. Being thus delivered, they must serve him. Note, 1. Children should be directed and encouraged to ask their parents questions concerning the things of God, a practice which would be perhaps of all others the most profitable way of catechising; and parents must furnish themselves with useful knowledge, that they may be ready always to give an answer to their enquiries. If ever the knowledge of God cover the earth, as the waters do the sea, the fountains of family-instruction must first be broken up. 2. We should all be able to show cause for what we do in religion. As sacraments are sanctified by the word, so they must be explained and understood by it. God's service is reasonable, and it is then acceptable when we perform it intelligently, knowing what we do and why we do it. 3. It must be observed how often it is said in this chapter that by strength of hand (Exo 13:3, Exo 13:14, Exo 13:16), with a strong hand (Exo 13:9), the Lord brought them out of Egypt. The more opposition is given to the accomplishment of God's purposes the more is his power magnified therein. It is a strong hand that conquers hard hearts. Sometimes God is said to work deliverance not by might nor power (Zac 4:6), not by such visible displays of his power as that recorded here. 4. Their posterity that should be born in Canaan are directed to say, The Lord brought us out of Egypt, Exo 13:14, Exo 13:16. Mercies to our fathers are mercies to us; we reap the benefit of them, and therefore must keep up a grateful remembrance of them. We stand upon the bottom of former deliverances, and were in the loins of our ancestors when they were delivered. Much more reason have we to say that in the death and resurrection of Jesus Christ we were redeemed.

It shall be for a token, etc. - See Clarke's note on Exo 13:9.

And it shall be for a token upon thine head, and for frontlets between thine eyes,.... These laws observed concerning the setting apart the firstlings of their beasts, the redemption of the firstborn of unclean ones, and of the firstborn of men, will bring the reason of it, the destruction of the firstborn of Egypt, and the preservation of the firstborn of Israel, as fresh to remembrance as any token upon the hand, put there to bring things to mind; and it will be as easily and as clearly discerned as anything upon a man's forehead may be seen by another:

for by strength of hand the Lord brought us forth out of Egypt: which is often mentioned, that it might be observed; it being the signs and wonders which the omnipotent hand of God wrought, especially the last, which worked upon Pharaoh, to let the people of Israel go; and their posterity, in all succeeding ages, would speak of this affair as if personally concerned in it, they being then in the loins of their ancestors, and represented by them, as well as they reaped and enjoyed all the benefits of that wonderful deliverance, the possession of the land of Canaan, and the blessings of it, as well as many other privileges both of a civil and religious kind. And so Maimonides (k) says,"in every age a man is obliged to consider himself as if he in himself now went out of the bondage of Egypt, as it is said, "and he brought us forth from thence", &c.''

(k) Hilchot Chametz Umetzah, c. 7. sect. 6.

FIRSTLINGS OF BEASTS. (Exo 13:11-16)

every firstling, &c.--the injunction respecting the consecration of the first-born, as here repeated, with some additional circumstances. The firstlings of clean beasts, such as lambs, kids, and calves, if males, were to be devoted to God and employed in sacrifice. Those unclean beasts, as the ass's colt, being unfit for sacrifice, were to be redeemed (Num 18:15).