“This month shall be for you the beginning of months. It shall be the first month of the year for you.
Moses and Aaron here receive of the Lord what they were afterwards to deliver to the people concerning the ordinance of the passover, to which is prefixed an order for a new style to be observed in their months (Exo 12:1, Exo 12:2): This shall be to you the beginning of months.
Commenting on Exodus 12:1-20
This month shall be unto you the beginning of months,.... Not only the first, as after expressed, but the chief and principal of them, now famous for their coming out of Egypt in it, and would be more so for the sufferings and death of the Messiah, and redemption by him from sin, Satan, and the world, law, hell, and death, for he suffered at the time of the passover.
this month shall be unto you the beginning of months--the first not only in order but in estimation. It had formerly been the seventh according to the reckoning of the civil year, which began in September, and continued unchanged, but it was thenceforth to stand first in the national religious year which began in March, April.