Genesis 17
7 Ref `And I have established My covenant between Me and thee, and thy seed after thee, to their generations, for a covenant age-during, to become God to thee, and to thy seed after thee;
8 Ref 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 Ref And God saith unto Abraham, `And thou dost keep My covenant, thou and thy seed after thee, to their generations;
10 Ref 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 Ref and ye have circumcised the flesh of your foreskin, and it hath become a token of a covenant between Me and you.