It was the same Aaron and Moses to whom the Lord said, “Bring the Israelites out of the land of Egypt by their regiments.” ¹ 

At the end of the 430 years, on the very day, all the regiments ¹  of the Lord went out of the land of Egypt.

And on this very day the Lord brought the Israelites out of the land of Egypt by their regiments.

Pharaoh will not listen to you. ¹  I will reach into ²  Egypt and bring out my regiments, ³  my people the Israelites, from the land of Egypt with great acts of judgment.

So you will keep the Feast of Unleavened Bread, because on this very ¹  day I brought your regiments ²  out from the land of Egypt, and so you must keep this day perpetually as a lasting ordinance. ³