Moses
Exodus 12:1ESV·traditional attribution

The LORD said to Moses and Aaron in the land of Egypt,

John Calvin Reformed @genevareformer

1. And the Lord spake. Although the institution of the Passover in some degree appertains to the Fourth Commandment, where the Sabbath and Feast-days will be treated of; yet, in so far as it was a solemn symbol Memorial. — Fr.

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 the Lord spake unto Moses and Aaron in the land of Egypt,.... Before they and the children of Israel came out of it, before the slaying of the firstborn, yea, before Moses came from the presence of Pharaoh, and had given him notice of it; and it is very probable even before the three days darkness, seeing it seems necessary it should be four...