Genesis 17:10 YLT

⁸  and I have given to thee, and to thy seed after thee, the land of thy sojournings, the whole land of Canaan, for a possession age-during, and I have become their God.'

⁹  And God saith unto Abraham, 'And thou dost keep My covenant, thou and thy seed after thee, to their generations;

¹⁰  this 'is' My covenant which ye keep between Me and you, and thy seed after thee: Every male of you 'is' to be circumcised;

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

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