Exodus
Chapters 12:48-51
Revised Version 1885
48And when a stranger shall sojourn with thee, and will keep the passover to the Lord, let all his males be circumcised, and then let him come near and keep it; and he shall be as one that is born in the land: but no uncircumcised person shall eat thereof.
49One law shall be to him that is homeborn, and unto the stranger that sojourneth among you.
50Thus did all the children of Israel; as the Lord commanded Moses and Aaron, so did they.
51And it came to pass the selfsame day, that the Lord did bring the children of Israel out of the land of Egypt by their hosts.