Summary

Although often neglected in historical and theological studies of Martin Luther’s work, an understanding of the Holy Spirit undergirds his signal contributions to the history of theology and is essential to any case for his ongoing relevance to contemporary theology and practice. Drawing on biblical exegesis, Luther would reinvigorate the doctrine of the Holy Spirit he inherited from the Western theological tradition and from the Ancient Church. Nonetheless, he wrote in a variety of literary genres and in response to a range of issues. To address this linguistic and historical complexity, this article examines the role the concept of the Holy Spirit plays in his theology by providing readings of texts that have been influential on later appropriations of his work. In doing so, it focuses on two intertwined themes in his theology. First, it examines his understanding of the Holy Spirit in relation to justification—that is, the righteousness of God we receive as a gift by faith—looking at his early biblical theology and two especially influential texts, “The Freedom of a Christian” (1520) and his “Lectures on Galatians” (1535). Second, it discusses his portrayal of the Holy Spirit as sanctifier—that is, as the one who creates holiness or sanctification in us—in his most well-known catechisms, in the “Confession of 1528,” and in his “Lectures on Genesis” (1535) and “Sermons on John” (1537). Throughout, attention will also be given to his understanding of the Trinity, Word and sacraments, faith, hope, and love, and the themes of promise and gift. The article concludes with a sketch of historical work and a discussion of the influence of Luther’s pneumatology on later theology and current areas of research.