Exodus 12:45

41 At the end of the 430 years, to the very day, all the LORD’s divisions went out of the land of Egypt.

42 Because the LORD kept a vigil that night to bring them out of the land of Egypt, this same night is to be a vigil to the LORD, to be observed by all the Israelites for the generations to come.

43 And the LORD said to Moses and Aaron, “This is the statute of the Passover: No foreigner is to eat of it.

44 But any slave who has been purchased may eat of it, after you have circumcised him.

45 A temporary resident or hired hand shall not eat the Passover.

46 It must be eaten inside one house. You are not to take any of the meat outside the house, and you may not break any of the bones.

47 The whole congregation of Israel must celebrate it.

48 If a foreigner resides with you and wants to celebrate the LORD’s Passover, all the males in the household must be circumcised; then he may come near to celebrate it, and he shall be like a native of the land. But no uncircumcised man may eat of it.

49 The same law shall apply to both the native and the foreigner who resides among you.”

Read all of Exodus 12