Exodus 12:48-50

Living Bible

⁴⁸ “As to foreigners, if they are living with you and want to observe the Passover with you, let all the males be circumcised, and then they may come and celebrate with you—then they shall be just as though they had been born among you; but no uncircumcised person shall ever eat the lamb. ⁴⁹ The same law applies to those born in Israel and to foreigners living among you.”

⁵⁰ So the people of Israel followed all of Jehovah’s instructions to Moses and Aaron.