Genesis 17:5-14

5No longer shall you be named 1Abram, But 2your name shall be 3Abraham; For 4I have made you the father of a multitude of nations. 6I will make you exceedingly fruitful, and I will make nations of you, and 5kings will come from you. 7I will establish My covenant between Me and you and your 6descendants after you throughout their generations as an 7everlasting covenant, 8to be God to you and 9to your 10descendants after you. 8And 11I will give to you and to your 12descendants after you the land where you live as a stranger, all the land of Canaan, as an everlasting possession; and 13I will be their God.”

9God said further to Abraham, “Now as for you, 14you shall keep My covenant, you and your 15descendants after you throughout their generations. 1016This is My covenant, which you shall keep, between Me and you and your 17descendants after you: every male among you shall be circumcised. 11And 18you 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 19eight 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 20descendants. 13A slave who is born in your house or 21who is bought with your money shall certainly be circumcised; so My covenant shall be in your flesh as an everlasting covenant. 14But as for an uncircumcised male, one who is not circumcised in the flesh of his foreskin, that person shall be 22cut off from his people; he has broken My covenant.”