Exodus 12:43-51

43 And the LORD said to Moses and Aaron, "This is the ordinance of the passover: no foreigner shall eat of it;
44 but every slave that is bought for money may eat of it after you have circumcised him.
45 No sojourner or hired servant may eat of it.
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.
49 There shall be one law for the native and for the stranger who sojourns among you."
50 Thus did all the people of Israel; as the LORD commanded Moses and Aaron, so they did.
51 And on that very day the LORD brought the people of Israel out of the land of Egypt by their hosts.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.