Although St. Anthony the Great, St. Athanasius of Alexandria, and the Desert Fathers have received considerable attention in early Christian studies, St. Sarapion of Thmuis has remained in relative obscurity. This book introduces the thought of this early Egyptian monastic bishop, highlighting the importance of both Sarapion's biblical hermeneutics and his utilization of Stoic philosophy. It includes an argument for Sarapion's authorship of the Letter to the Monks as well as translations of Sarapion's three extant writings: Letter to Bishop Eudoxios, Letter to the Monks, and Against the Manichaeans.