Exodus 12:42-49

42It is a night to be much observed unto Jehovah for bringing them out from the land of Egypt: this is that night of Jehovah, to be much observed of all the children of Israel throughout their generations.

43And Jehovah said unto Moses and Aaron, This is the ordinance of the passover: there shall no foreigner 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 a 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 Jehovah, 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. 49One law shall be to him that is home-born, and unto the stranger that sojourneth among you.