Bereshis 17:10-12

Orthodox Jewish Bible

¹⁰ This is My Brit (covenant), which ye shall be shomer over, between Me and you and thy zera after thee; every zachar among you shall be circumcised.

¹¹ And ye shall circumcise the basar of your arelah; and it shall be an ot brit (sign of the covenant) between Me and you.

¹² And he that is eight days old shall be circumcised among you, every zachar in your dorot, he that is born in the bais, or bought with kesef of any foreigner, which is not of thy zera.