This month shall be unto you the beginning of months: it shall be the first month of the year to you.
All Commentaries on Exodus 12:2 Go To Exodus 12
Ambrose of Milan
AD 397
In like manner also we can understand this statement: “This month shall be to you the beginning of months.” This statement is to be interpreted in reference to time. There is reference to the pasch of the Lord, which is celebrated at the beginning of spring. Therefore he created heaven and earth at the time when the months began, from which time it is fitting that the world took its rise. Then there was the mild temperature of spring, a season suitable for all things. .