Labor of the Law, Labor of Love
“Under Christ, therefore, the law consists in what is about to be done, not in what is actually done. Believers have need of it that they might be reminded by the law. It will not be an obligation or any demand, but a labor of the law which is the perfect and highest love.”
Martin Luther, WA 39:1.374, 11. Quoted in H. J. Iwand, The Righteousness of Faith According to Luther, Chapter Two “Law and Gospel.” Translated by R.H. Lundell. Reprinted in Lutheran Quarterly, Volume XXI/Number 2, Summer 2007, p. 232.