Genesis 17:9-13

Abraham and the Covenant of Circumcision

⁹God said further to Abraham, “Now as for you, you shall keep My covenant, you and your descendants after you throughout their generations. ¹⁰This is My covenant, which you shall keep, between Me and you and your descendants after you: every male among you shall be circumcised. ¹¹And you shall be circumcised in the flesh of your foreskin, and it shall be the sign of the covenant between Me and you. ¹²And every male among you who is eight days old shall be circumcised throughout your generations, including a slave who is born in the house or who is bought with money from any foreigner, who is not of your descendants. ¹³A slave who is born in your house or who is bought with your money shall certainly be circumcised; so My covenant shall be in your flesh as an everlasting covenant.