Oswald Bayer is one of the most important contemporary interpreters of Martin Luther and confessional Lutheran theologians. As a Luther scholar, Bayer has identified the precise reformational turning point in Luther's life and theology, which is also the central point for a truly Lutheran theology: the promise of a forgiving and justifying God preached in Jesus Christ. As a Lutheran theologian, Bayer stresses that this promise of God is the ultimate subject matter of all theology, and that...