Exodus 12:48

If a stranger shall sojourn with you and would keep the Passover to the Lord , let all his males be circumcised . Then he may come near and keep it; he shall be as a native of the land . But no uncircumcised person shall eat of it.

“A foreigner residing among you who wants to celebrate the Lord`s Passover must have all the males in his household circumcised; then he may take part like one born in the land. No uncircumcised male may eat it.

And 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 : for no uncircumcised person shall eat thereof.