Exodus 12:46-48

Revised Standard Version

⁴⁶ In one house shall it be eaten; you shall not carry forth any of the flesh outside the house; and you shall not break a bone of it. ⁴⁷ All the congregation of Israel shall keep it. ⁴⁸ And when 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.