The Importance of Faith in Martin Luther's Theology

Martin Luther was a fairly mainstream medieval theologian with the, he got some funky theology even by medieval standards when he was in university. One of the things that he grasps in his development between 1513 and 15, basically 19 or so is solafide. And it was through lecturing through Galatians, Lecturing through Hebrews, and then lecturing through the Psalms again. He realized faith is there may be a sense of which faith is a virtue in sanctification, right as a consequence.