Galatians 3:10-12, 21-25

For as many as are of the works of the law are under a curse: for it is written, Cursed is every one who continueth not in all things that are written in the book of the law, to do them. Now that no man is justified by the law before God, is evident: for, The righteous shall live by faith; and the law is not of faith; but, He that doeth them shall live in them.

Is the law then against the promises of God? God forbid: for if there had been a law given which could make alive, verily righteousness would have been of the law. But the scripture shut up all things under sin, that the promise by faith in Jesus Christ might be given to them that believe. But before faith came, we were kept in ward under the law, shut up unto the faith which should afterwards be revealed. So that the law is become our tutor to bring us unto Christ, that we might be justified by faith. But now that faith is come, we are no longer under a tutor.