Genesis 17:12-14

Complete Jewish Bible

¹² Generation after generation, every male among you who is eight days old is to be circumcised, including slaves born within your household and those bought from a foreigner not descended from you. ¹³ The slave born in your house and the person bought with your money must be circumcised; thus my covenant will be in your flesh as an everlasting covenant. ¹⁴ Any uncircumcised male who will not let himself be circumcised in the flesh of his foreskin — that person will be cut off from his people, because he has broken my covenant.”