Exodus 12:41-43

New Revised Standard Version Catholic Edition

⁴¹ At the end of four hundred thirty years, on that very day, all the companies of the Lord went out from the land of Egypt. ⁴² That was for the Lord a night of vigil, to bring them out of the land of Egypt. That same night is a vigil to be kept for the Lord by all the Israelites throughout their generations.

Directions for the Passover

⁴³ The Lord said to Moses and Aaron: This is the ordinance for the passover: no foreigner shall eat of it,