St. John of Damascus (John Damascene) is the author of the "Exact Exposition of the Orthodox Faith" ("On the Orthodox Faith"), included in this volume. Standing among the greatest of the early Church fathers of the East during the patristic age, he produced his work The Fount of Knowledge as a summary of Christian philosophy and theology. Encompassing "The Philosophical Chapters," "On Heresies," and the justly-famous "Exact Exposition of the Orthodox Faith," it is one of the most important works of the Greek patristic age-a veritable Summa of the doctrine of the Eastern fathers. This Ex Fontibus edition reprints the excellent twentieth-century translation by patristics scholars who contributed to a series published by Catholic University of America press. Published by Ex Fontibus Company.

Explores a fourteenth-century debate over man’s knowledge of God.

In AD 726, the Byzantine emperor ordered the destruction of all icons, or religious images, throughout the empire, and icons were subject to an imperial ban that was to last, with a brief remission, until AD 843. A defender of icons, St John of Damascus wrote three treatises against "those who attack the holy images." He differentiates between the veneration of icons, which is a matter of expressing honor, and idolatry, which is offering worship to something other than God.

How did Islam come to be considered a Christian heresy? In this book, Peter Schadler outlines the intellectual background of the Christian Near East that led John, a Christian serving in the court of the caliph in Damascus, to categorize Islam as a heresy. Schadler shows that different uses of the term heresy persisted among Christians, and then demonstrates that John’s assessment of the beliefs and practices of Muslims has been mistakenly dismissed on assumptions he was highly biased. The practices and beliefs John ascribes to Islam have analogues in the Islamic tradition, proving that John may well represent an accurate picture of Islam as he knew it in the seventh and eighth centuries in Syria and Palestine.

Much of the world today is convulsed in an epic struggle between the Christian West and Islam. Scholars seeking to understand the issues look back in history to unearth the roots of this conflict. Of great value in this effort are the writings of an eyewitness, a devoted Christian who served as chief financial officer of the Umayyad Empire and wrote at the time Islam was developing. John of Damascus (675-750) authored two major works, the Heresy of the Ishmaelites and the Disputation between a Christian and a Saracen, to provide an apologetic response to Islam from a Christian perspective. His writings shed light on many questions that are pertinent today: When was the Qur'an actually written? What was the role of the powerful caliph Abd al-Malik in the making of Muhammad? How did the theological issues related to the deity of Christ and the Trinity develop in the early days of Islam? This book delves into the life of John and studies his apologetic writings in detail, utilizing the first English translation from the critical text. It seeks to address these questions thoughtfully, provide valuable insights from the past, and then equip today's church as it engages with Islam.

Perichoresis (mutual indwelling) is a concept used extensively in the so-called Trinitarian revival; and yet no book-length study in English exists probing how the term actually developed in the "classical period" of Christian doctrine and how it was carefully deployed in relation to Christian dogma. Consequently, perichoresis is often used in imprecise and even careless ways. This path-breaking study aims at placing our understanding of the term on firmer footing, clarifying its actual usage in relation to doctrines of God, Christ, and salvation in the thought of John of Damascus, the eighth-century theologian, monk, and hymn writer who gave it its historically influential application. Since John summed up a whole theological tradition, this work provides not only an introduction to his theological vision but also to the key themes of Greek patristic thought generally and thereby lays an essential foundation for those who would dig deeper into the present-day usefulness of perichoresis.

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