If a foreigner resides with you and wants to celebrate the Lord’s Passover, every male in his household must be circumcised, and then he may participate; he will become like a native of the land. But no uncircumcised person may eat it.
Then He gave him the covenant of circumcision. After this, he fathered Isaac and circumcised him on the eighth day; Isaac did the same with Jacob, and Jacob with the 12 patriarchs.