And I will establish a covenant of circumcision with thee, and it shall be my covenant between me and thee, and thy seed after thee, in their generations; that thou mayest know for ever that children are not accountable before me until they are eight years old.

 And thou shalt observe to keep all my covenants wherein I covenanted with thy fathers; and thou shalt keep the commandments which I have given thee with mine own mouth, and I will be a God unto thee and thy seed after thee.