This course will examine some of the writers and texts that most influenced early Christian thought and practice from the second to the fifth centuries, paying careful attention to themes of Christology, anthropology, ecclesiology, sacramental theory, and biblical interpretation, as well as to the nature and method of theology itself.  Selected authors come from a diversity of cultural backgrounds, geographical regions, languages, and perspectives, and include major thinkers such as Irenaeus, Origen, Tertullian, Athanasius, and Augustine.