131 Then the Lord said to Moses, 2 "Dedicate to me every firstborn among the Israelites. The first offspring to be born, of both humans and animals, belongs to me." 3 So Moses said to the people, "This is a day to remember forever-the day you left Egypt, the place of your slavery. Today the Lord has brought you out by the power of his mighty hand. (Remember, eat no food containing yeast.) 4 On this day in early spring, in the month of Abib, you have been set free. 5 You must celebrate this event in this month each year after the Lord brings you into the land of the Canaanites, Hittites, Amorites, Hivites, and Jebusites. (He swore to your ancestors that he would give you this land-a land flowing with milk and honey.) 6 For seven days the bread you eat must be made without yeast. Then on the seventh day, celebrate a feast to the Lord . 7 Eat bread without yeast during those seven days. In fact, there must be no yeast bread or any yeast at all found within the borders of your land during this time. 8 "On the seventh day you must explain to your children, 'I am celebrating what the Lord did for me when I left Egypt.' 9 This annual festival will be a visible sign to you, like a mark branded on your hand or your forehead. Let it remind you always to recite this teaching of the Lord : 'With a strong hand, the Lord rescued you from Egypt.' 10 So observe the decree of this festival at the appointed time each year.
11 "This is what you must do when the Lord fulfills the promise he swore to you and to your ancestors. When he gives you the land where the Canaanites now live, 12 you must present all firstborn sons and firstborn male animals to the Lord, for they belong to him. 13 A firstborn donkey may be bought back from the Lord by presenting a lamb or young goat in its place. But if you do not buy it back, you must break its neck. However, you must buy back every firstborn son. 14 "And in the future, your children will ask you, 'What does all this mean?' Then you will tell them, 'With the power of his mighty hand, the Lord brought us out of Egypt, the place of our slavery. 15 Pharaoh stubbornly refused to let us go, so the Lord killed all the firstborn males throughout the land of Egypt, both people and animals. That is why I now sacrifice all the firstborn males to the Lord -except that the firstborn sons are always bought back.' 16 This ceremony will be like a mark branded on your hand or your forehead. It is a reminder that the power of the Lord 's mighty hand brought us out of Egypt."
Matthew Henry's Commentary on Exodus 13:1-16
Commentary on Exodus 13:1-10
(Read Exodus 13:1-10)
In remembrance of the destruction of the first-born of Egypt, both of man and of beast, and the deliverance of the Israelites out of bondage, the first-born males of the Israelites were set apart to the Lord. By this was set before them, that their lives were preserved through the ransom of the atonement, which in due time was to be made for sin. They were also to consider their lives, thus ransomed from death, as now to be consecrated to the service of God. The parents were not to look upon themselves as having any right in their first-born, till they solemnly presented them to God, and allowed his title to them. That which is, by special mercy, spared to us, should be applied to God's honour; at least, some grateful acknowledgment, in works of piety and charity, should be made. The remembrance of their coming out of Egypt must be kept up every year. The day of Christ's resurrection is to be remembered, for in it we were raised up with Christ out of death's house of bondage. The Scripture tells us not expressly what day of the year Christ rose, but it states particularly what day of the week it was; as the more valuable deliverance, it should be remembered weekly. The Israelites must keep the feast of unleavened bread. Under the gospel, we must not only remember Christ, but observe his holy supper. Do this in remembrance of him. Also care must be taken to teach children the knowledge of God. Here is an old law for catechising. It is of great use to acquaint children betimes with the histories of the Bible. And those who have God's law in their heart should have it in their mouth, and often speak of it, to affect themselves, and to teach others.
Commentary on Exodus 13:11-16
(Read Exodus 13:11-16)
The firstlings of beast not used in sacrifice, were to be changed for others so used, or they were to be destroyed. Our souls are forfeited to God's justice, and unless ransomed by the sacrifice of Christ, will certainly perish. These institutions would continually remind them of their duty, to love and serve the Lord. In like manner, baptism and the Lord's supper, if explained and attended to, would remind us, and give us occasion to remind one another of our profession and duty.