(4) The month Abib.--Abib means "green ears of corn," or "greenness;" and the month of Abib was that in which the wheat came into ear, and the earth generally renewed its verdure. It was a "vague," or shifting month, since it properly began with the day of the full moon that followed next after the vernal equinox. It retained its name until the Babylonian captivity, when the Babylonian name Nisan superseded the original one (Nehemiah 2:1; Esther 3:7).

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.This day came ye out,.... Out of Egypt, on the fifteenth of Nisan, as the Targum of Jonathan:

in the month Abib; which signifies an ear of corn, because in this month barley was in the ear, see Exodus 9:31, the Syriac version renders it, "in the month of flowers"; when the flowers were rising up out of the earth, being spring time, and a very fit time to travel in; and this is observed, not only because they might not know what month it was, in such a state of ignorance, as well as servitude, were they kept in Egypt; but as Jarchi also intimates, to point out to them the mercy and goodness of God to them, in bringing them out at such a seasonable time to travel in, when there were neither heat, nor cold, nor rain. This month answers to part of our March, and part of April.