Cohen, Jeremy. Living Letters of the Law: Ideas of the Jew in Medieval Christianity. University of California Press, 1999.
Jeremy Cohen's Living Letters of the Law: Ideas of the Jew in Medieval Christianity is a comprehensive examination of how medieval Christian theologians perceived and portrayed Jews and Judaism from the time of St. Augustine (354-430 CE) to Thomas Aquinas (1225-1274). The book begins with Augustine's influential doctrine of Jewish witness, which stated that Jews should be preserved in Christian society as living testimonies to the truth of Christianity. This concept became a foundational idea in medieval Christian thought about Jews. Cohen explains and traces how this Augustinian concept evolved and was adapted over the centuries, reflecting changes in medieval Christian self-understanding and its relationship to Judaism. He explores how Christian theologians constructed a "hermeneutical Jew" - an idealized, a-historical figure based on their interpretation of biblical texts, rather than on actual Jewish people and practices of their time.
Throughout this period, Cohen demonstrates how the idea of the Jew in Christian thought was intimately tied to broader issues of textual interpretation, anthropology, and the philosophy of history. A significant aspect of Cohen's work is his analysis of how the twelfth-century European encounter with Islam affected Christian views of Jews and the value placed on Augustine's concept of Jewish witness. He argues that this encounter with Islam led to a reevaluation of Augustine's concept of Jewish witness. Augustine had stated that Jews should be preserved in Christian society as living testimonies to the truth of Christianity. However, Cohen explains how the encounter with Islam complicated this view because Christians were now faced with another monotheistic religion that, like Judaism, rejected the divinity of Christ. He posits this led to more nuanced theological comparisons between the three faiths. All these important facts add much depth to this reviewer’s understanding of medieval interreligious dynamics. It shows how the introduction of a third major religious player in the European context led to shifts in theological, philosophical, and social perspectives on religious diversity and the relationships between faiths.
Cohen's work is highly regarded for its scholarly rigor and its ability to link medieval ideas about Jews to broader intellectual trends in Western history. I find that Living Letters of the Law provides valuable insights into the historical roots of Christian-Jewish relations and the development of antisemitism, making it a significant contribution to both medieval studies and interfaith understanding.