Matthew Poole and continuators on Exodus 12:1

1 AND the LORD spake unto Moses and Aaron, in the land of Egypt, saying:

Had spoken, before the three days darkness, as may appear by comparing ver. 3. and 6. of this chapter with chap. 11. 4. And the mention of it was put off by him till this place, aswell that he might not interrupt the history of all the plagues, as that he might give the whole institution of the Passeover together.