Refreshingly abandoning the twentieth-century quest for the ‘moment’ of Luther’s ‘breakthrough,’ Robert Kolb explores the ‘evangelical maturation’ of an actual human being, rooted in history, searching for the favor of a holy God. As a result of the gospel: A lord of all and servant of all? Luther’s ‘On Christian Freedom’ has been rarely understood from within the Reformer’s own categories and experience. Anyone who thinks that Luther has nothing practical to say about the Christian life must read this informative and pleasurable work.