Genesis 17:10-13 ▼

10 this [is] My covenant which you keep between Me and you, and your seed after you: every male of you [is] to be circumcised;

11 and you have circumcised the flesh of your foreskin, and it has become a token of a covenant between Me and you.

12 And a son of eight days is circumcised by you; every male throughout your generations, born in the house, or bought with money from any son of a stranger, who is not of your seed;

13 he is certainly circumcised who [is] born in your house, or bought with your money; and My covenant has become in your flesh a perpetual covenant;