Exodus 12:41-43

American Standard Version

⁴¹ And it came to pass at the end of four hundred and thirty years, even the selfsame day it came to pass, that all the hosts of Jehovah went out from the land of Egypt. ⁴² It is ^[a]a night to be much observed unto Jehovah for bringing them out from the land of Egypt: ^[b]this is that night of Jehovah, to be much observed of all the children of Israel throughout their generations.

⁴³ And Jehovah said unto Moses and Aaron, This is the ordinance of the passover: there shall no foreigner eat thereof;