Moses
Exodus 12:21ESV·traditional attribution

Then Moses called all the elders of Israel and said to them, “Go and select lambs for yourselves according to your clans, and kill the Passover lamb.

John Calvin Reformed @genevareformer

I have here omitted what Moses has related in the beginning of the chapter up to this verse, because it pertains to the perpetual doctrine of the Law. I shall hereafter insert it in its proper place. But., since here also God gave precepts as to the observation of the Passover, I have thought it right to interweave them with the history; because Moses does...

Matthew Henry Presbyterian @wholebiblehenry

I. Moses is here, as a faithful steward in God's house, teaching the children of Israel to observe all things which God had commanded him; and no doubt he gave the instructions as largely as he received them, though they are not so largely recorded. It is here added, 1.

Commenting on Exodus 12:21-28

John Gill Reformed Baptist @doctorgill

Then Moses called for all the elders of Israel,.... Not in age but in office, who were either heads of families, or at least principal men in the tribes; which explains in what manner he was to speak to the congregation of Israel, and convey to them the will of God concerning the observation of these feasts, Exo 12:3, and said unto them, draw out...