Schism in the context of "Political faction"

The 2018 Moscow–Constantinople schism is an ongoing schism between the Russian Orthodox Church (ROC, also known as the Moscow Patriarchate) and the Ecumenical Patriarchate of Constantinople, which began on 15 October 2018 when the former unilaterally severed full communion with the latter.

The resolution was taken in response to a decision of the Holy Synod of the Ecumenical Patriarchate of Constantinople of 11 October 2018, confirming its intentions to grant autocephaly to the Orthodox Church of Ukraine in the future. The decision also stated that the Holy Synod would immediately: reestablish a stauropegion in Kyiv, i.e. a church body subordinated directly to the ecumenical patriarch; revoke the "Letter of issue" (permission) of 1686 that had given permission to the patriarch of Moscow to ordain the metropolitan of Kiev and lift the excommunications which affected the clergy and faithfuls of two unrecognized Ukrainian Eastern Orthodox churches. Those two unrecognized churches, the Ukrainian Autocephalous Orthodox Church (UAOC) and the Ukrainian Orthodox Church – Kyiv Patriarchate (UOC-KP), were competing with the Ukrainian Orthodox Church (Moscow Patriarchate) (UOC-MP) and were considered "schismatics" (illegally segregated groups) by the Patriarchate of Moscow, as well as by the other Eastern Orthodox churches.

The expression "one true church" refers to an ecclesiological position asserting that Jesus gave his authority in the Great Commission solely to a particular visible Christian institutional church—what is commonly called a denomination. This view is maintained by the Catholic Church, the Eastern Orthodox Church, the Oriental Orthodox communion, the Assyrian Church of the East, the Ancient Church of the East, and the Lutheran churches, as well as certain Baptists. Each of them maintains that their own specific institutional church (denomination) exclusively represents the one and only original church. The claim to the title of the "one true church" relates to the first of the Four Marks of the Church mentioned in the Nicene Creed: "one, holy, catholic, and apostolic church". As such, it also relates to claims of both catholicity and apostolic succession: asserting inheritance of the spiritual, ecclesiastical and sacramental authority and responsibility that Jesus Christ gave to the apostles.

The concept of schism somewhat moderates the competing claims between some churches—one can potentially repair schism, since they are striving for the same goal. For example, the Catholic and Eastern Orthodox churches each regard the other as schismatic and at very least heterodox, if not heretical, yet both have held dialogues and even partaken in Councils in attempts to resolve the division that exists between them.

The Ukrainian Orthodox Church – Kyiv Patriarchate (UOC-KP; Ukrainian: Украї́нська Правосла́вна Це́рква – Ки́ївський Патріарха́т (УПЦ-КП), romanized: Ukrainska Pravoslavna Tserkva — Kyivskyi Patriarkhat (UPTs-KP)) was an Orthodox church in Ukraine, in existence from 1992 to 2018. Its patriarchal cathedral was St Volodymyr's Cathedral in Kyiv.

After its unilateral declaration of autocephaly in 1992, the UOC-KP was not recognised by the other Eastern Orthodox churches, and was considered a "schismatic group" by the Moscow Patriarchate and Ecumenical Patriarchate. Patriarch Filaret (Denysenko) was enthroned in 1995 and excommunicated by the Russian Orthodox Church in 1997, an action not recognized by the UOC-KP synod. In 2018, the Ecumenical Patriarchate of Constantinople moved unilaterally and against canonical norms to facilitate a "unification council", in contradiction to his previous statement "recognizing the fullness of the Russian Orthodox Church's exclusive competence on this issue". The canonical Ukrainian Orthodox Church rejected these overtures, noting its universal recognition as sole canonical authority on the territory of Ukraine and the political nature of the proposed council. Constantinople ignored this, "reinstated" Filaret as a bishop and facilitated the convening of a unification council. In December 2018, the unification council of the Eastern Orthodox churches of Ukraine decided to unite the UOC-KP with the Ukrainian Autocephalous Orthodox Church (UAOC), creating the Orthodox Church of Ukraine (OCU) which was subsequently granted autocephaly by the Ecumenical Patriarch of Constantinople in January 2019.

The Church of the East (Classical Syriac: ܥܕܬܐ ܕܡܕܢܚܐ ʿĒḏtā d-Maḏenḥā) or the East Syriac Church, also called the Church of Seleucia-Ctesiphon, the Persian Church, the Assyrian Church, the Babylonian Church, the Chaldean Church or the Nestorian Church, is one of three major branches of Eastern Nicene Christianity that arose from the Christological controversies in the 5th century and the 6th century, alongside that of Miaphysitism (which came to be known as the Oriental Orthodox Churches) and Chalcedonian Christianity (from which Catholicism, Eastern Orthodoxy and Protestantism would arise).

Having its origins in Mesopotamia during the time of the Parthian Empire, the Church of the East developed its own unique form of Christian theology and liturgy. During the early modern period, a series of schisms gave rise to rival patriarchates, sometimes two, sometimes three. In the latter half of the 20th century, the traditionalist patriarchate of the church underwent a split into two rival patriarchates, namely the Assyrian Church of the East and the Ancient Church of the East, which continue to follow the traditional theology and liturgy of the mother church. The Chaldean Catholic Church based in Iraq and the Syro-Malabar Church in India are two Eastern Catholic churches which also claim the heritage of the Church of the East.

The Union of Utrecht of the Old Catholic Churches, most commonly referred to by the short form Union of Utrecht (UU), is a federation of Old Catholic churches, nationally organized from schisms which rejected Roman Catholic doctrines of the First Vatican Council in 1870; its member churches are not in communion with the Roman Catholic Church.

The 1889 Declaration of Utrecht is one of three founding documents together called the Convention of Utrecht. Many provinces of the Union of Utrecht of the Old Catholic Churches are members of the World Council of Churches. The UU is in full communion with the Evangelical Lutheran Church of Sweden; the Anglican Communion through the 1931 Bonn Agreement; the Philippine Independent Church, the Spanish Reformed Episcopal Church, and the Lusitanian Catholic Apostolic Evangelical Church through a 1965 extension of the Bonn Agreement; and, the Mar Thoma Syrian Church through the 2024 Thiruvalla agreement.

The Amish (/ˈɑːmɪʃ/ , also /ˈæmɪʃ/ or /ˈeɪmɪʃ/; Pennsylvania German: Amisch), formally the Old Order Amish, are a group of traditionalist Anabaptist Christian church fellowships with Swiss and Alsatian origins. As they maintain a degree of separation from surrounding populations, and hold their faith in common, the Amish have been described by certain scholars as an ethnoreligious group, combining features of an ethnicity and a Christian denomination. The Amish are closely related to Old Order Mennonites and Conservative Mennonites, denominations that are also a part of Anabaptist Christianity. The Amish are known for simple living, plain dress, Christian pacifism, and slowness to adopt many conveniences of modern technology, with a view neither to interrupt family time, nor replace face-to-face conversations whenever possible, and a view to maintain self-sufficiency. The Amish value rural life, manual labor, humility and Gelassenheit (submission to God's will).

The Amish church began with a schism in Switzerland within a group of Swiss and Alsatian Mennonite Anabaptists in 1693 led by Jakob Ammann. Those who followed Ammann became known as Amish. In the second half of the 19th century, the Amish divided into Old Order Amish and Amish Mennonites; the latter do not abstain from using motor cars, whereas the Old Order Amish retained much of their traditional culture. When people refer to the Amish today, they normally refer to the Old Order Amish, though there are other subgroups of Amish. The Amish fall into three main subgroups—the Old Order Amish, the New Order Amish, and the Beachy Amish—all of whom wear plain dress and live their life according to the Bible as codified in their church's Ordnung. The Old Order Amish and New Order Amish conduct their worship in German, speak Pennsylvania Dutch, and use buggies for transportation, in contrast to the Beachy Amish who use modern technology (inclusive of motor cars) and conduct worship in the local language of the area in which they reside. Both the New Order Amish and the Beachy Amish emphasize the New Birth, evangelize to seek converts, and have Sunday schools.

The persecution of Christians can be traced from the first century of the Christian era to the present day. Christian missionaries and converts to Christianity have both been targeted for persecution, sometimes to the point of being martyred for their faith, ever since the emergence of Christianity.

Early Christians were persecuted at the hands of both Jews, from whose religion Christianity arose, and the Romans who controlled many of the early centers of Christianity in the Roman Empire. Since the emergence of Christian states in Late Antiquity, Christians have also been persecuted by other Christians due to differences in doctrine which have been declared heretical. Early in the fourth century, the empire's official persecutions were ended by the Edict of Serdica in 311 and the practice of Christianity legalized by the Edict of Milan in 312. By the year 380, Christians had begun to persecute each other. The schisms of late antiquity and the Middle Ages – including the Rome–Constantinople schisms and the many Christological controversies – together with the later Protestant Reformation provoked severe conflicts between Christian denominations. During these conflicts, members of the various denominations frequently persecuted each other and engaged in sectarian violence.