- Introduction
- The church and its history
- The essence and identity of Christianity
- The history of Christianity
- The primitive church
- The internal development of the early Christian Church
- Relations between Christianity and the Roman government and the Hellenistic culture
- The early liturgy, the calendar, and the arts
- The alliance between church and empire
- Theological controversies of the 4th and 5th centuries
- Liturgy and the arts after Constantine
- Political relations between East and West
- Literature and art of the “Dark Ages”
- Missions and monasticism
- The Photian schism and the great East–West schism
- From the schism to the Reformation
- Christianity from the 16th to the 20th century
- Contemporary Christianity
- Christian doctrine
- The nature and functions of doctrine
- Scripture and tradition: the apostolic witness
- Evangelism: the first teaching about the God of Jesus Christ
- Catechesis: instructing candidates for baptism
- Liturgy: the school and feast of faith
- Ethics: obeying the truth
- Aversion of heresy: the establishment of orthodoxy
- Apologetics: defending the faith
- Restatement: respecting language and knowledge
- Inculturation: respecting places and peoples
- Dogma: the most authoritative teaching
- Consensus: patterns of agreement
- Theology: loving God with the mind
- Symbolics: creeds and confessions
- Development: the maturation of understanding
- Schism: division over substantial matters
- Controversy: fighting over the faith
- Ecumenism: speaking the truth in love
- God the Father
- God the Son
- God the Holy Spirit
- The Holy Trinity
- Anthropology
- What it is to be human
- The human as a creature
- The human as the image of God
- Human redemption
- The problem of suffering
- The resurrection of the body
- Progressive human perfection
- The “new man”: The human being in the light of Christ
- The “reborn human”
- Human liberation
- Joy in human existence
- The charismatic believer
- Christian perfection
- Fellow humans as the present Christ
- The church
- Church tradition
- Eschatology
- Expectations of the Kingdom of God in early Christianity
- Expectations of the Kingdom of God in the medieval and Reformation periods
- Expectations of the Kingdom of God in the post-Reformation period
- The role of imminent expectation in missions and emigrations
- Eschatological expectations and secularization
- Concepts of life after death
- Aspects of the Christian religion
- Christian philosophy
- Christian mysticism
- Christian myth and legend
- The Christian community and the world
- The relationships of Christianity
- Christian missions
- Ecumenism
- Christianity and world religions
Historical and polemical writing
The first church historian was Eusebius, bishop of Caesarea in the 4th century, who collected records up to the reign of Constantine. He wrote four historical works, including a life of Constantine and the Ecclesiastical History, his most important contribution. His history was translated and continued in Latin by Tyrannius Rufinus of Aquileia. The history of the church from Constantine to about 430 was continued by three Greek historians: Socrates Scholasticus, Sozomen, and Theodoret (whose works were adapted for the Latin world by Cassiodorus). Ecclesiastical history from 431 to 594 was chronicled by Evagrius Scholasticus. The consequences of Chalcedon as interpreted by Monophysite historians were recorded by Timothy Aelurus, Zacharias Scholasticus, and John of Nikiu.
The monastic movement produced its own special literature, especially the classic Life of St. Antony by Athanasius, the collections of sayings of the Desert Fathers, John Climacus’s Heavenly Ladder, and John Moschus’s Spiritual Meadow. Along with these works, monastic rules—most notably the Rule of the Master (an anonymous monastic rule that influenced Benedict of Nursia), the rules of Basil, and the Rule of Benedict—are unique contributions to the tradition of Christian literature that offer insight into religious beliefs and practices.
The Arian and Christological controversies produced important polemical writers—Athanasius, the three Cappadocian Fathers (Basil, Gregory of Nazianzus, and Gregory of Nyssa), Cyril of Alexandria, and Theodoret. After 500, Monophysite theology had eminent figures—Severus of Antioch and the Alexandrian grammarian John Philoponus, who was also a commentator on Aristotle. But much theology was non-polemical—e.g., catechesis and biblical commentaries. In the 6th century, “chains” (catenae) began to be produced in which the reader was given a summary of the exegesis of a succession of commentators on each verse.
In the West, Hilary of Poitiers, Ambrose of Milan, and, above all, the incomparable scholar Jerome (translator of the standard Latin Bible, or Vulgate) gave Latin theology confidence. The greatest of the ancient Western theologians, and one of the most important in all of Christian history, was Augustine. Author of sermons, letters, polemical texts, and other works, he adapted Platonic thought to Christian ideas and created a theological system of lasting power. His most influential works include Confessions, an autobiography and confession of faith, and his The City of God, a monumental work of apology, theology, and Christian philosophy of history. Finally, in the 6th century, Gregory I built upon the legacy of Augustine and the other 4th-century fathers. Gregory’s works of moral theology, pastoral care, and hagiography greatly influenced medieval spirituality.
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