Exodus 12:48-50

Complete Jewish Bible

⁴⁸ If a foreigner staying with you wants to observe Adonai’s Pesach, all his males must be circumcised. Then he may take part and observe it; he will be like a citizen of the land. But no uncircumcised person is to eat it. ⁴⁹ The same teaching is to apply equally to the citizen and to the foreigner living among you.”

⁵⁰ All the people of Isra’el did just as Adonai had ordered Moshe and Aharon.