Exodus 12:48-50

Lexham English Bible

⁴⁸ And when an alien dwells with you and he wants to prepare the Passover for Yahweh, every male belonging to him must be circumcised, and then he may come near to prepare it, and he will be as the native of the land, but any uncircumcised man may not eat it. ⁴⁹ One law will be for the native and for the alien who is dwelling in your midst.”

⁵⁰ And all the Israelites^[a] did as Yahweh had commanded Moses and Aaron; so they did.