15 Brothers (I speak according to man), if a man's testament has been confirmed, no one would reject it or add to it.
16 The promises were made to Abraham and to his offspring. He did not say, "and to descendents," as if to many, but instead, as if to one, he said, "and to your offspring," who is Christ.
17 But I say this: the testament confirmed by God, which, after four hundred and thirty years became the Law, does not nullify, so as to make the promise empty.
18 For if the inheritance is of the law, then it is no longer of the promise. But God bestowed it to Abraham through the promise.
19 Why, then, was there a law? It was established because of transgressions, until the offspring would arrive, to whom he made the promise, ordained by Angels through the hand of a mediator.
20 Now a mediator is not of one, yet God is one.
21 So then, was the law contrary to the promises of God? Let it not be so! For if a law had been given, which was able to give life, truly justice would be of the law.