Abstract: Though the monastic writings of St John Cassian have been enduringly popular, his reputation (not least as a theological author) has been seriously compromised. This book begins with an evaluation of conventional ideas about Cassian and, finding them seriously flawed, offers the first sustained attempt at re-reading Cassian's works for their theological significance. Specific attention is called to the Christological aspects of Cassian's monastic anthropology. Throughout, reference is made to Cassian's contemporaries — both well-known figures like Augustine of Hippo, Evagrius Ponticus, Vincent of Lérins, and Nestorius, and lesser-known figures such as Prosper of Aquitaine, Valerian of Cimiez, and Paul of Tamma — in order to offer an analysis of Cassian's writings and their significance that is unencumbered by anachronism.

Keywords: Christology, monastic anthropology, Christian monasticism