Moses
Exodus 12:14BSB·traditional attribution

And this day will be a memorial for you, and you are to celebrate it as a feast to the LORD, as a permanent statute for the generations to come.

John Calvin Reformed @genevareformer

14. And this day shall be unto you. This is spoken of its annual celebration, which was as well a monument of their exodus as a symbol of their future deliverance. As to its being called a rite, or ordinance for ever, (edictum soeculi,) I admit that by this expression perpetuity is meant, but only such as would exist until the renovation of the Church...

Matthew Henry Presbyterian @wholebiblehenry

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

John Gill Reformed Baptist @doctorgill

And this shall be unto you for a memorial,.... To be remembered, and that very deservedly, for the destruction of the firstborn of the Egyptians, and for the deliverance of the children of Israel out of Egypt, and as memorable a day it is, and much more so, for the redemption of the spiritual Israel by the Messiah; for it was on this selfsame day...