Catholic Church
The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
and the
Eastern Orthodox Church
The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is List of Christian denominations by number of members, one of the three major doctrinal and ...
have been in a state of official schism from one another since the
East–West Schism
The East–West Schism, also known as the Great Schism or the Schism of 1054, is the break of communion (Christian), communion between the Catholic Church and the Eastern Orthodox Church. A series of Eastern Orthodox – Roman Catholic eccle ...
of 1054. This schism was caused by historical and linguistic differences, and the ensuing theological differences between the Western and Eastern churches.
The main theological differences with the Catholic Church are the
papal primacy
Papal primacy, also known as the primacy of the bishop of Rome, is an ecclesiological doctrine in the Catholic Church concerning the respect and authority that is due to the pope from other bishops and their episcopal sees. While the doctri ...
and the ''
filioque
( ; ), a Latin term meaning "and from the Son", was added to the original Nicene Creed, and has been the subject of great controversy between Eastern and Western Christianity. The term refers to the Son, Jesus Christ, with the Father, as th ...
'' clause. In spirituality, the tenability of neo-Palamism's essence-energy distinction and of the experiential vision of God as attained in ''theoria'' and ''theosis'' are actively debated.
Although the 21st century saw a growth of anti-Western sentiments with the rise of neo-Palamism, "the future of East–West rapprochement appears to be overcoming the modern polemics of neo-scholasticism and neo-Palamism".Michael J. Christensen, Jeffery A. Wittung (editors), ''Partakers of the Divine Nature'' (Associated University Presses 2007 ), p. 244 Since the
Second Vatican Council
The Second Ecumenical Council of the Vatican, commonly known as the or , was the 21st and most recent ecumenical council of the Catholic Church. The council met each autumn from 1962 to 1965 in St. Peter's Basilica in Vatican City for session ...
, the Catholic Church has generally taken the approach that the schism is primarily ecclesiological in nature, that the doctrinal teachings of the Eastern Orthodox churches are generally sound, and that "the vision of the
full communion
Full communion is a communion or relationship of full agreement among different Christian denominations or Christian individuals that share certain essential principles of Christian theology. Views vary among denominations on exactly what constit ...
to be sought is that of unity in legitimate diversity" as before the division.
Areas of doctrinal agreement
Both churches accept the decisions of the
first seven Ecumenical Councils
In the history of Christianity, the first seven ecumenical councils include the following: the First Council of Nicaea in 325, the First Council of Constantinople in 381, the Council of Ephesus in 431, the Council of Chalcedon in 451, the Secon ...
of the undivided Church. These are:
There is therefore doctrinal agreement on:
Both churches reject many
Protestant
Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...
The Catholic Church and the Eastern Orthodox Church have been in a state of official schism from one another since the
East–West Schism
The East–West Schism, also known as the Great Schism or the Schism of 1054, is the break of communion (Christian), communion between the Catholic Church and the Eastern Orthodox Church. A series of Eastern Orthodox – Roman Catholic eccle ...
of 1054. This schism was caused by historical and language differences, and the ensuing theological differences between the Western and Eastern churches.
The
Byzantine Empire
The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the ...
permanently withdrew from the City of
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
in 751, thus ending the Byzantine Papacy. The subsequent mutual alienation of the Greek-speaking East and the Latin-speaking West led to increasing ignorance of the theological and ecclesiological developments of each tradition.
The Eastern Church and the Western Church used respectively Greek and Latin as their media of communication. Translations did not always correspond exactly. This also led to misunderstandings.
Papal primacy
Papal primacy, also known as the "primacy of the Bishop of Rome," is an
Kallistos Ware
Metropolitan Kallistos (born Timothy Richard Ware, 11 September 1934 – 24 August 2022) was an English bishop and theologian of the Eastern Orthodox Church. From 1982, he held the titular bishopric of Diokleia in Phrygia (), later made a titu ...
(Translator) The Philokalia, Volume 4: The Complete Text; Compiled by St. Nikodimos of the Holy Mountain & St. Markarios of Corinth