Genesis 17:9-14 - The Mark Of The Covenant

⁹ And God said to Abraham, "Now [as for] you, you must keep my covenant, you and your offspring after you, throughout their generations. ¹⁰ This [is] my covenant which you shall keep, between me and you, and [also] with your offspring after you: Every male among you shall be circumcised. ¹¹ And you shall circumcise the flesh of your foreskin, and it shall be a sign of the covenant between me and you. ¹² And {at eight days of age} you shall yourselves circumcise every male [belonging] to your generations [and] {the servant born in your house and the one bought from any foreigner} who is not from your offspring. ¹³ {You must certainly circumcise} {the servant born in your house and the one bought from any foreigner}. And my covenant shall be with your flesh as an everlasting covenant. ¹⁴ And [as for any] uncircumcised male who has not circumcised the flesh of his foreskin, that person shall be cut off from his people. He has broken my covenant.