Concept

Eastern Orthodox Church

Overview

The Eastern Orthodox Church, officially the Orthodox Catholic Church, also known as the Greek Orthodox Church is the second-largest Christian body in the world after the Roman Catholic Church, and one of the three major doctrinal and jurisdictional groups of Christianity.

The Eastern Orthodox Church operates as a communion of autocephalous churches, each governed by its bishops via local synods. The church has no central doctrinal or governmental authority analogous to the pope of the Roman Catholic Church. Nevertheless, the Ecumenical Patriarch of Constantinople is recognised by them as primus inter pares ('first among equals'), a title held by the patriarch of Rome prior to the East–West Schism.

As one of the oldest surviving religious institutions in the world, the Eastern Orthodox Church has played an especially prominent role in the history and culture of Eastern and Southeastern Europe. Since 2018, there has been an ongoing schism between Constantinople and Moscow, with the two not in full communion with each other.

Eastern Orthodox theology is based on the Scriptures and holy tradition, which incorporates the dogmatic decrees of the seven ecumenical councils, and the teaching of the Church Fathers. The church teaches that it is the one, holy, catholic and apostolic church established by Jesus Christ in his Great Commission, and that its bishops are the successors of Christ's apostles. It maintains that it practises the original Christian faith, as passed down by holy tradition. Its patriarchates, descending from the pentarchy, and other autocephalous and autonomous churches, reflect a variety of hierarchical organisation. It recognises seven major sacraments (which are called holy mysteries), of which the Eucharist is the principal one, celebrated liturgically in synaxis. The church teaches that through consecration invoked by a priest, the sacrificial bread and wine become the body and blood of Christ. The Virgin Mary is venerated in the Eastern Orthodox Church as the Theotokos, which means 'God-bearer', and she is honoured in devotions.

The churches of Constantinople, Alexandria, Jerusalem, and Antioch—except for some breaks of communion such as the Photian schism or the Acacian schism—shared communion with the Church of Rome until the East–West Schism in 1054. The 1054 schism was the culmination of mounting theological, political, and cultural disputes, particularly over the authority of the pope, between those churches. Before the Council of Ephesus in AD 431, the Church of the East also shared in this communion, as did the various Oriental Orthodox Churches before the Council of Chalcedon in AD 451, all separating primarily over differences in Christology.

The Eastern Orthodox Church is the primary religious confession in Russia, Ukraine, Romania, Greece, Belarus, Serbia, Bulgaria, Georgia, Moldova, North Macedonia, Cyprus, and Montenegro. Eastern Orthodox Christians are also one of the main religious groups in Estonia, Bosnia and Herzegovina, Kosovo and Latvia as well as a significant group in Syria, Lebanon, and other countries in the Middle East. Roughly half of Eastern Orthodox Christians live in the post Eastern Bloc countries, mostly in Russia. The communities in the former Byzantine regions of North Africa and the Eastern Mediterranean are among the oldest Orthodox communities from the Middle East, which are decreasing due to forced migration driven by increased religious persecution. Eastern Orthodox communities outside Western Asia, Asia Minor, Caucasia and Eastern Europe, including those in North America, Western Europe, and Australia, have been formed through diaspora, conversions, and missionary activity.

Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).

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CHAP. XVIII.--27. On the question of baptism, then, I think that I have argued at sufficient length; and since this is a most manifest schism which is called by the name of the Donatists, it only remains that on the subject of baptism we should believe with pious faith what the universal Church maintains, apart from the sacrilege of schism. And yet, if within the Church different men still held different opinions on…
of Hippo Augustine, Writings in Connection with the Donatist Controversy
States what Eastern Orthodox Church is; the author is tied to Eastern Orthodox Church in the knowledge graph.
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This is, properly speaking to exalt himself above all that is called God as Paul says, 2 Thess. 2, 4. Even the Turks or the Tartars, great enemies of Christians as they are, do not do this, but they allow whoever wishes to believe in Christ, and take bodily tribute and obedience from Christians.
Martin Luther, The Smalcald Articles
States what Eastern Orthodox Church is.
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While the Church, in the strict sense of the word, is the "communion of saints" and therefore _one_, yet outwardly it has become divided, in the course of time, into many different churches, denominations, and sects. It contains Four Great Branches: _The Greek Catholic Church_; _The Roman Catholic Church_; _The Evangelical Lutheran Church_; and _The Reformed Churches_, comprising a great number of denominations and…
Martin Luther, An Explanation of Luther's Small Catechism
States what Eastern Orthodox Church is.
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Eastern Orthodox Church

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