Ex 12:43-51

Law of the Passover. 43The LORD said to Moses and Aaron: This is the Passover statute. No foreigner may eat of it. 44However, every slave bought for money you will circumcise; then he may eat of it. 45But no tenant or hired worker may eat of it. 46It must be eaten in one house; you may not take any of its meat outside the house.^k You shall not break any of its bones.^* 47The whole community of Israel must celebrate this feast. 48If any alien^l residing among you would celebrate the Passover for the LORD, all his males must be circumcised, and then he may join in its celebration just like the natives. But no one who is uncircumcised may eat of it. 49There will be one law^* for the native and for the alien residing among you.

50All the Israelites did exactly as the LORD had commanded Moses and Aaron. 51On that same day the LORD brought the Israelites out of the land of Egypt company by company.