The steep challenge of personal change is no less keen today than in Martin Luther's day, and this book takes a new look at his important work. Luther's notorious denial of personal agency apart from the grace of God, and his scoffing at any but the most spontaneous works of Christian life, have recently rankled both critics of classic Lutheran theology and ecumenical dialogue partners. In this book, theologian and ethicist Mary Gaebler offers a critical corrective to the historical record and theological assumptions about human being and human agency. She not only shows how Luther's thinking on the will and effective agency evolved, she shows a deeper coherence in his thinking that guided him through successive vocations as a monk, a public figure, a spouse and father, and pastor. In addition, she shows Luther's anthropology became increasingly open, with a growing affirmation of the created order and the recognition of faith's role in the transformation of the world, leading to Luther's exhortation to take courage in God's transforming presence for the good of all.