We have therefore need to pray that God will lead us and make us taught of God, that is, ready to learn from God; and will Himself, as He has promised, write His law in our hearts; otherwise there is no hope for us. For unless He himself teach us inwardly this wisdom hidden in a mystery, nature cannot but condemn it and judge it to be heretical. She takes offence at it, and it seems folly to her, just as we see that it happened of old in the case of the prophets and Apostles, and just as blind and impious pontiffs, with their flatterers, do now in my case and that of those who are like me, upon whom, together with ourselves, may God at length have mercy, and lift up the light of His countenance upon them, that we may know His way upon earth and His saving health among all nations, who is blessed for evermore. Amen. In the year of the Lord MDXX. End of Project Gutenberg's Concerning Christian Liberty, by Martin Luther