The Law and Faith

"The Law requires that we perform something for God. Faith does not require our doing; it requires that we believe the promise of God and accept something from Him. Therefore the function of the Law, at its highest level, is to work, just as that of faith is to assent. Thus the Law provides doing, and faith provides believing; for faith is faith in the promise, and the work is the work of the Law."

Luther, M. (1999, c1963). Vol. 26: Luther's works, vol. 26 : Lectures on Galatians, 1535, Chapters 1-4 (J. J. Pelikan, H. C. Oswald & H. T. Lehmann, Ed.). Luther's Works (26:272). Saint Louis: Concordia Publishing House.