In this text, political scientist J. M. Porter, presents revealing selections from nine of Luther’s important writings. Porter compiles excerpts from Luther’s writings which shaped the Reformation and continue to influence the course of events in our time. They illustrate Luther’s innovative ideas about the nature of temporal authority, political obligation and its limits, church-state relations, and political resistance. These selections reveal the complexity of the reformer’s thinking, its theological base, and the situational focus of his political utterances. Porter also provides a helpful introduction in which he clarifies the meaning and implications of Luther’s famous “two kingdoms” theory, whereby the state is freed both from domination by the church, and from the temptation to dominate the conscience of its citizens.