Development of the Doctrine of the Church During the Patristic Period

by Boyan Mak Mihaylov

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https://orcid.org/0009-0007-6257-1246

Abstract:

Mihaylov, Boyan. Development of the Doctrine of the Church during the Patristic Period. History of Christian Theology I, Dr. Sorin Badragan. Heilgenkreuz, Austria: TCM International Institute, 2023.

This research paper examines the development of the doctrine of the Church during the Patristic Period (ca. 100–787 AD), tracing the formation of early Christian ecclesiology from the Apostolic Fathers through the post-Nicene era to the Seventh Ecumenical Council. The study explores how the early Church Fathers articulated the nature, identity, authority, and mission of the Church in response to theological controversies, emerging heresies, and shifting historical circumstances, with particular attention to biblical metaphors (the Body of Christ, Bride of Christ, Family of God, House of God, and Temple of the Holy Spirit) and the later addition of the four classical marks of the Church: unity, holiness, catholicity, and apostolicity. The paper traces the development of the threefold ministry from its nascent form in Clement and Ignatius to its full articulation in Cyprian's theology of episcopal unity, examines the emergence of apostolic succession as a guarantee of doctrinal fidelity, and highlights the deepening divergence between Eastern and Western ecclesiological paradigms—the West developing a juridical and institutional understanding culminating in papal primacy (Leo the Great), while the East cultivated a mystical and sacramental vision centered on eucharistic koinonia and the "symphony" between church and state (Eusebius, Basil, Pseudo-Dionysius). Key patristic contributions examined include Augustine's distinction between the visible and invisible Church, Cyprian's doctrine of episcopal unity and the extra ecclesiam nulla salus principle, Irenaeus' defence of apostolic tradition against Gnosticism, and the political transformation of the Church from a persecuted minority to an established imperial institution. The paper concludes that the patristic period established the foundational framework for all subsequent ecclesiological reflection, and that while Eastern and Western traditions developed in distinct directions—the former emphasizing mystical participation in Christ through sacraments and liturgy, the latter emphasizing institutional authority and juridical structure—both shared a common commitment to the Church as the divinely instituted means of salvation, a vision whose enduring relevance for contemporary ecumenical dialogue, spiritual renewal, and institutional critique remains significant today.

Keywords:

ecclesiology, church fathers, eastern church, western church, metaphors of the church, apostolic fathers, Iraeneus, Eusebius of Caesarea, Cyprian, Augustin of Hippo, Pope Leo I, Pseudo-Dionysius the Areopagite

Original Language:

Bulgarian

Translation:

Ukrainian | German | Russian | Spanish | Portoguese

Holy Scripture uses metaphors¹ to describe the church. The most important of them is the "Body of Christ", of which God the Son is the head. This defines the Church as organic (Rom. 12:4-5; 1 Cor. 10:17). The metaphor of the "Bride of Christ" speaks of intimacy - purity and relationship with Christ (Rev. 19:7-8; 21:9; Eph. 5:31-31). "Family of God" speaks of spiritual kinship (2 Cor. 6:18). "House of God" carries the idea of a structure (Heb. 3:6). "God's temple" presents the church as the abode of the Holy Spirit and priesthood (1 Pet.2:5; 1 Cor. 3:16-17).

During the patristic period, several more characteristics were added - the church was one and was called "conciliar", "ecumenical" and "apostolic". The structure of the church, the sacraments and the interaction with the state are developing. From a church considered a variety of Judaism, it grew into a confession legalized by Emperor Constantine with the Edict of Milan (313) ² and imposed as a state by Emperor Theodosius I, who confirmed the decisions of the Nicene Council (325) as a norm ³.

The Apostolic Fathers

The Apostolic Fathers generally repeat the ideas of the church from the New Testament, but emphasize church unity and continuity. In his first epistle to the Corinthian church, Clement of Rome uses "bishop" and "presbyter" for the same person⁴. Ignatius of Antioch (2nd century) sets forth the three-level hierarchy – one bishop for one church, under which there are presbyters and deacons. Unity is centered in the bishop to protect the church from schism and heresies. ⁵ In his letter to the Roman church, Ignatius does not mention one (monarchical) bishop, which, according to Professor Tony Lane, means that there is still no three-tiered hierarchy in the west.

In the Didache, when the bread is broken for the Lord's Table, it is said that the Church must be gathered from the ends of the earth. ⁶ After the portion is taken, God is invoked to gather the church from the four winds. ⁷ At the beginning of the second century, the church began to acquire a universal character. The Lord's Supper and baptism are practiced. There is a simplified liturgy.

Ante-Nicene Fathers

By the time of Irenaeus of Lyons (130 - 202), the church already had a considerable geographical spread. Irenaeus raised the four gospels as a pillar, and the "Spirit of Life" as the foundation of the Church:

...While the Church is scattered throughout all the world, and the pillar and ground of the Church is the Gospel (Against Heresies 3:11:8)⁸

In the churches founded by the apostles, the unified teaching was preached openly and consistently, unlike the multitude of Gnostic heretics. We also observe the beginnings of apostolic succession. The bishops are receivers of the apostolic teaching and guarantee its correctness:⁹

And we are in a position to reckon up those who were by the apostles instituted bishops in the Churches, and [to demonstrate] the succession of these men to our own times (Agains Heresies 3:3:31)¹⁰

Cyprian (200 – 258) served during the persecution of Emperor Decius (249 – 251). Christians are forced to make sacrifices to pagan gods if they want to stay alive. Traditionally, those who renounced the church were not readmitted. He claims that the bishops, with the recommendation of the martyrs, should decide the question of the repentance of the apostates. According to some, he is strict, and according to others he is too soft. Some, like Novationian, separate and do not readmit apostates. That is why Cyprian wrote the treatise "On the Unity of the Church". There is one Congregational Church that you can only leave:

If you do not have the Church as a mother, you cannot have God as a Father¹¹

As with Irenaeus, according to Cyprian, the unity of the Church is centered in the bishop (unit) and obedience to him becomes a sign of whether you are in the church:

Know that the bishop is in the Church and the Church is in the bishop. If one is not with the bishop, he is not in the church¹²

The bishop is independent in his church, but has a share jointly with the other bishops. If someone was baptized outside the Congregational Church (Novitiate), he must be baptized again. In the 4th century, the Congregational Church in Africa rejected this view, but the breakaway Donatists accepted it. Cyprian's teaching on the unity of the church became fundamental for the next millennium.¹³.

Eusebius of Caesarea (260/265 – 339/340) is considered the father of church history. He is a supporter of Emperor Constantine. Became the father of the Eastern doctrine of the absolute divine monarch:

In the same way our emperor, whom He loves, leads his earthly subjects to the only Word and Savior and makes them worthy subjects of his kingdom¹⁴

The secular power began to be attributed spiritual functions belonging to the church, resembling more and more the state administration. This discourages someone - the church becomes an institution and spirituality declines.

In the year 381, at the Second Ecumenical Council, the teaching about the church was confirmed in the Nicaeo-Constantinople Creed: "9. In the one, holy, universal (congregational) and apostolic Church." ¹⁵ The Church is one. It is holy because it is in Christ and the Holy Spirit is in it. It is ecumenical and universal because it gathers everywhere and has a unified structure. It is apostolic because it carries the teaching of the apostles, transmitted through the bishops.

The symbol has a political meaning - it eliminates heretical factions from the church. In theory there is one empire with one official church. But this is no longer the church of the martyrs, but of the bishops and persecutors of paganism.

Post-Nicene Fathers to the Seventh Ecumenical Counsel

Around 480, the Western Roman Empire was conquered by barbarian tribes, and the Eastern Roman Empire gradually became Byzantine. The differences in ecclesiology are getting bigger. The Western Church gradually became a powerful institution headed by the Roman Pope, and the Eastern Church fought in "symphony" with the empire.

The Western Church

The Western Church is practically oriented because it suffers from the strong influence of Roman administration and law. It is foreign to the philosophical abstractions of the East.

As a Christian Neoplatonist, Aurelius Augustine (354 – 430) was the first to develop the doctrine of the visible and invisible church. In the work "On the City of God", he wrote the chapter "On the sons of the church, hidden among the ungodly and on untrue Christians" (book 1, ch. 35), which contains a key text:

So, too, as long as she is a stranger in the world, the city of God has in her communion, and bound to her by the sacraments, some who shall not eternally dwell in the lot of the saints. Of these, some are not now recognized; others declare themselves, and do not hesitate to make common cause with our enemies in murmuring against God, whose sacramental badge they wear. These men you may today see thronging the churches with us, tomorrow crowding the theatres with the godless.¹⁶

The "City of God" is foreign to this world and its citizens are connected through the sacraments - the invisible church. Not everyone is recognized as a part of it, and it also has future members. There are others attending the meetings ("...crowd and throng the churches...") who are not true believers, but only God knows who are true. The invisible church is inside the Congregational Church and there are no true Christians outside of it. ¹⁷.

In a dispute with the Donatists, Augustine pointed out that the church is holy because it is Christ's - regardless of the individuals in it. Sacraments are initiated by God, and regardless of whether they are performed in the church, properly performed they bring grace and are efficacious. One difference with Cyprian that explains the change that occurred in the North African church in the fourth century. So, for example, if you leave the Donatists and go to the Congregational Church, your baptism remains valid.¹⁸.

Augustine summarizes his argument:

The truth is that in this world these two cities, the earthly and the heavenly, are intertwined, even overflowing into each other, and their borders will remain invisible until the Last Judgment separates them

If the earthly and the heavenly overflow: there is no strict distinction. The seeds of Western medieval ecclesiology are sown: church, social life and politics are completely intertwined.

Leo the Great (400 - 461) participated through his "Tom" at the Council of Chalcedon in 451. In addition to orthodox Christology, he is also known for his teachings about the Roman Pope. According to him, the pope is an unworthy successor of the ap. Peter (Matt. 16:18–19) and has all the authority granted to Peter by Jesus Christ. Not only is he first among the bishops, but he speaks through the authority of Peter himself! Cyprian also interprets Matt. 16:18-19, but in the direction of preserving the unity among the bishops, because Peter represents all the apostles. Leo the Great claimed that the pope could empower and remove bishops, and ruled over the entire universal church. The idea was not accepted by the Eastern bishops and shows the growing differences in ecclesiology!

In 753-754, the Frankish King Pippin promised Pope Stephen II protection if his dynasty remained in power. After a year, he stopped the Lombards and donated territories to the papacy - the papal state ¹⁹. His son Charles I (Charlemagne) became the new king. In 799, Pope Leo III was attacked by a rival faction. A year later, Charles I restored order and Leo III crowned him "Emperor of the Romans"! ²⁰ This set a precedent in East-West relations because there was a functioning emperor in the Eastern Roman Empire. The actions of Leo III claimed not only complete spiritual authority, but political authority over the empire! At the Seventh Ecumenical Council (787), relations between the Eastern and Western Churches were irreversibly strained, because the Western Church already had a military-political function.

The Eastern Church

The East is philosophically oriented, influenced by various currents, ethnically and linguistically heterogeneous, although Greek is widely spoken.

The Church in the East is understood as a eucharistic community in which there is koinonia ("communion"). The word was used by Basil the Great (329/330 – 379) for the communion of persons in the Trinity, but also for the communion of men with Christ. The communion of the Father, the Son, and the Holy Spirit denotes the same communion which brings man into the community. Therefore, the church is not just a gathering of people with similar beliefs, but a koinonia in God and with God. ²¹ Theoretically good, but practically Christianity becomes a ritual. In the tenth / eleventh century, Simeon the New Theologian denounced the Eastern Christians for their lack of spirituality!

According to Johann Mayendorff, Eastern ecclesiology goes in the direction of realized eschatology - the kingdom of God is already "in power", the expression of which is the empire. Emperor Justinian (482 – 565) introduced the idea of the "symphony" between "divine things" and "human works" which was based on Christ's incarnation ²², again a Platonic idea.

Pseudo-Dionysius Areopagite (VI century) is the most typical representative of the influence of Neoplatonism on the understanding of the church. In the "Heavenly Hierarchy" the church is depicted in the likeness of the heavenly hierarchy, as the hierarchy in the church on earth mirrors the heavenly one. Besides bishop, presbyter/priest and deacon, Dionysius also writes about: monk, layman and catechumen. It lists three sacraments: baptism, eucharist, and anointing. ²³

After the Seventh Ecumenical Council, Eastern theology remained relatively static, with the exception of figures such as Simeon the New Theologian and Gregory Palamas (13th century). The teachings of the fathers are being generalized, and the Byzantine Empire is gradually dying out politically. In 1672, the Patriarch of Alexandria, Cyril Loukaris, wrote Confessions of Dositheus with a certain reforming influence. Article 12 is dedicated to the Church: it is not subject to error, because it is taught by the Holy Spirit through the mediation of the fathers.²⁴

Eastern ecclesiology understands the church as a mystical community "in Christ" in which one participates through the sacraments and liturgical life.

Conclusion

The church is organic, Christ is its head. She is in a close relationship with Christ. The members of the church should be close as relatives because God is their father. It is a temple in which the Holy Spirit dwells, it has a structure and it must officiate.

The patristic period added the ideas that the church was congregational, ecumenical, and apostolic to protect it from schisms and heresies. According to the fathers, there is salvation only in the church. The main thing in the service is the liturgy.

The Western Church appears as an organized institution that acquires politicaleconomic power and regulates all spheres of society - it reaches papo-caesarism. The Eastern Church becomes a eucharistic community in "koinonia" with God and among believers under the regulation of the state and in "symphony" with it.

At the beginning of the 9th century, there was a significant change in the understanding of the church. It is an institution with a strict hierarchy, sacraments, buildings for priesthood and liturgy.

The challenge to us is to always return to our understanding of the church given by the Head - the Lord Jesus Christ.