(12) For if they which are of the (k) law [be] heirs, faith is made void, and the promise made of none effect:
(12) A double confirmation of that reason: the one is that the promise cannot be apprehended by the law, and that if it could it would be made of no effect: the other, that the condition of faith would be joined in vain to the promise if it could be apprehended by works.
(k) If they are heirs who have fulfilled the law.