It is a common misconception that Lutheran theology is inherently antinomian, or unconcerned with Christian ethics. This unfortunate caricature of the doctrine of the Reformation has been furthered by certain strands of Lutheran theology, which reject the third use of the law and the necessity of expounding Christian ethics in preaching. In this book, Jordan Cooper challenges the claim that Lutheranism emphasizes justification at the expense of sanctification, demonstrating that the two kinds of righteousness are a historical Lutheran framework that gives prominence to both salvation by grace and one's duty to serve the neighbor in love. Through an evaluation of Luther's writings, the confessional documents, Lutheran Orthodoxy, and contemporary writers, Cooper demonstrates that an emphasis on the passive nature of one's relationship to God does not diminish or negate the necessity of sanctified living. This is done not by departing from Lutheran teaching, but by delving deeper into historic Lutheran theology as found in the scholastic tradition.