15Brothers, I speak in human terms: just as no one rejects or adds to a covenant made by a human.16Now the promises were spoken to Abraham and to his seed. It does not say, "And to seeds," as to many, but "And to your seed," as to one, who is Christ.17This I say: a covenant previously affirmed by God, the law that came four hundred and thirty years later does not nullify it, so as to abate the promise.18For if the inheritance is out from law, it is no longer out from promise; yet God has granted it to Abraham through promise.19Why then the law? It was added because of transgressions until the seed should come to whom it had been promised, having been directed through angels in the hand of a mediator.20Now a mediator is not of one, but God is one.21Is the law then contrary to the promises of God? Certainly not. For if a law had been given that could impart life, then righteousness would indeed have been from law.22But the Scripture confined all things under sin, so that the promise by faith in Jesus Christ might be given to those who believe.23Before faith came, we were held in custody under law, being confined until the faith that was about to be revealed.24So the law has become our guardian toward Christ, in order that we might be justified out from faith.25But now that faith has come, we are no longer under a guardian.