Exodus

⁴²It is a night to be much observed unto the Lord for bringing them out from the land of Egypt: this is that night of the Lord, to be much observed of all the children of Israel throughout their generations. ⁴³And the Lord said unto Moses and Aaron, This is the ordinance of the passover: there shall no alien eat thereof: ⁴⁴but every man's servant that is bought for money, when thou hast circumcised him, then shall he eat thereof. ⁴⁵A sojourner and an hired servant shall not eat thereof. ⁴⁶In one house shall it be eaten; thou shalt not carry forth aught of the flesh abroad out of the house; neither shall ye break a bone thereof. ⁴⁷All the congregation of Israel shall keep it. 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.