Hebraism in Religion, History, and Politics is an investigation into Hebraism as a category of cultural analysis within the history of Christendom. Its aim is to determine what Hebraism means or should mean when it is used. The characteristics of Hebraism indicate a changing relation between the Old and New Testaments that arose in Medieval and early modern Europe, between on the one hand a doctrinally universal Christianity, and on the other various Christian nations that were understood as being a ‘new Israel’. Thus, Hebraism refers to the development of a paradoxically intriguing ‘Jewish Christianity’ or an ‘Old Testament Christianity’. It represents a ‘third culture’ in contrast to the culture of Roman or Hellenistic empire and Christian universalism. There were attempts, with varying success, during the twentieth century to clarify Hebraism as a category of cultural history and religious history. Steven Grosby expertly contributes to that clarification. In so doing, the possibility arises that Hebraism and Hebraic culture offer a different way to look at religion, its history, and the history of the West.