These are the classifications serious people dispute. Each entry states the contested question, documents both positions with their sources, and names the doctrinal loci where the contest sits. The register carries no verdicts of its own: verdicts belong to the named theological reviewers under the criteria, and a Contested verdict requires two named positions and a second reviewer. Every entry below is flagged as a disputed placement, because that is what it is.
Nontrinitarian bodies claiming Christian identity
Jehovah's Witnesses
Placement disputed
Jehovah's Witnesses call themselves Christians restoring primitive Christianity, while the historic churches hold that their teaching on God and Christ stands outside the creedal faith.
The body's own account
Jehovah's Witnesses state that they are Christians who follow Jesus Christ as God's Son, that Jehovah is the one true God, and that their worship restores first-century Christianity.
Source: jw.org, 'What Do Jehovah's Witnesses Believe?'
The historic churches' account
Catholic, Orthodox, and conciliar Protestant bodies hold that denying the Trinity and the full divinity of Christ contradicts the Nicene faith, and they do not recognize the Witnesses' baptism as Christian baptism.
Source: Catechism of the Catholic Church, sections 232 to 267; United States Conference of Catholic Bishops, statement on Jehovah's Witnesses baptism
Latter-day Saints
Placement disputed
The Church of Jesus Christ of Latter-day Saints calls itself the restored Church of Jesus Christ, while historic bodies hold that its teaching on the nature of God and on continuing revelation departs from the creedal faith.
The body's own account
The Church of Jesus Christ of Latter-day Saints states that it is the restored Church of Jesus Christ, that Jesus is the Son of God and the Savior, and that its members are Christians.
Source: The Articles of Faith (1842); churchofjesuschrist.org, 'Are Members of The Church of Jesus Christ of Latter-day Saints Christian?'
The historic churches' account
Historic bodies hold that Latter-day Saint teaching on the nature of God, continuing revelation, and additional scripture departs from the creedal faith, and most do not recognize its baptism.
Source: Congregation for the Doctrine of the Faith, Response on the validity of baptism in the Church of Jesus Christ of Latter-day Saints (2001)
Unitarian Universalism
Placement disputed
Unitarian Universalism arose inside American Christianity and retains that genealogy, while its present creedless form does not confess the Christian faith.
The body's own account
The Unitarian Universalist Association states that it is a liberal religious tradition drawing from many sources, that it does not require belief in God or in the divinity of Jesus, and many of its members do not identify as Christian.
Source: Unitarian Universalist Association, 'Our Unitarian Universalist Principles and Sources'
The historical account
The tradition arose inside American Congregationalism and keeps a genealogical link to Christianity, while its present form stands outside creedal Christianity, by its own account as well.
Source: Encyclopaedia Britannica, 'Unitarian Universalism'
Christian Science
Placement disputed
The Church of Christ, Scientist calls its teaching the Science of Christianity, while historic bodies hold that its account of matter, sin, and the resurrection departs from the creeds.
The body's own account
The Church of Christ, Scientist states that Christian Science is the law of God demonstrated by Christ Jesus, and that matter and evil are errors of mortal mind rather than creations of God.
Source: Mary Baker Eddy, Science and Health with Key to the Scriptures (1875)
The historic churches' account
Historic bodies hold that Christian Science's denial of the reality of matter, sin, and the bodily resurrection departs from the creeds, and they classify it as a distinct religion.
Source: Walter Martin, The Kingdom of the Cults (1965)
Oneness Pentecostalism
Placement disputed
Oneness Pentecostal bodies confess one God manifested fully in Jesus and baptize in Jesus' name, while Trinitarian bodies hold that this modalist account was rejected by the early church.
The bodies' own account
Oneness Pentecostal bodies state that God is absolutely one, that Jesus is the full manifestation of that one God, and that baptism in Jesus' name with the gift of the Holy Ghost follows the pattern of Acts 2:38.
Source: United Pentecostal Church International, Articles of Faith
The historic churches' account
Trinitarian Pentecostal and historic bodies hold that modalism was rejected by the early church and that Oneness baptismal practice departs from the Trinitarian formula of Matthew 28:19.
Source: Assemblies of God, position paper on the Oneness controversy (1916)
Iglesia ni Cristo
Placement disputed
The Iglesia ni Cristo calls itself the one true church restored in the Philippines, while historic bodies classify it outside creedal Christianity for its teaching on God and Christ.
The body's own account
The Iglesia ni Cristo states that it is the one true church restored by Felix Y. Manalo as God's last messenger, that God the Father alone is the true God, and that Jesus is a man and the Son of God.
Source: Iglesia ni Cristo, fundamental beliefs published at incmedia.org
The historic churches' account
Historic bodies in the Philippines and elsewhere classify the Iglesia ni Cristo as a distinct restorationist body outside creedal Christianity because of its teaching on God and on Christ.
Source: Philippine Council of Evangelical Churches, statements on the Iglesia ni Cristo
Swedenborgianism / The New Church
Placement disputed
Swedenborgian churches call themselves Christian and read Swedenborg's writings as revelation for a new church age, while historic bodies hold that their teaching on the Trinity and on Christ departs from the creeds.
The bodies' own account
Swedenborgian churches state that the Lord is one God in whom there is a Divine Trinity, that Emanuel Swedenborg's theological writings are a revelation for a new church age, and that the churches are Christian.
Source: Emanuel Swedenborg, True Christian Religion (1771)
The historic churches' account
Historic bodies hold that Swedenborgian teaching on the Trinity, the saving work of Christ, and the authority of Swedenborg's writings departs from the creedal faith.
Source: Encyclopaedia Britannica, 'Swedenborgianism'
Armstrongism / Worldwide Church of God (historical)
Placement disputed
The Worldwide Church of God under Herbert W. Armstrong taught a system the historic churches rejected, and after his death the same body repudiated that system and was received as evangelical.
The historical teaching
The Worldwide Church of God under Herbert W. Armstrong taught British Israelism, observance of the biblical festivals and the seventh-day Sabbath, and that God is a family into which believers are born.
Source: Herbert W. Armstrong, Mystery of the Ages (1985)
The body's later account
After Armstrong's death the church's leadership repudiated his distinctive doctrines and adopted evangelical teaching, and the body was received into the National Association of Evangelicals in 1997 under the name Grace Communion International.
Source: Grace Communion International, 'A Brief History of Grace Communion International'
The Unification Church
Placement disputed
The Unification movement presents its teaching as the fulfillment of Christianity through the True Parents, while historic bodies hold that its account of Jesus contradicts the creeds' confession of his finished work.
The movement's own account
The Family Federation for World Peace and Unification states that Sun Myung Moon and Hak Ja Han Moon are the True Parents who complete the mission Jesus began, and presents its teaching as the fulfillment of Christianity.
Source: Exposition of the Divine Principle (1996 English edition)
The historic churches' account
Historic bodies hold that the Unification teaching on Jesus' unfinished mission and on the True Parents contradicts the creeds, and they classify the movement as a new religion.
Source: National Council of Churches, statements on the Unification Church
The Family International / Children of God
Placement disputed
The Family International calls itself a Christian fellowship, while former members and public records document abusive practices in its earlier decades and historic bodies do not recognize it as a church in communion with them.
The movement's own account
The Family International states that it is a Christian fellowship following the teachings of Jesus, founded by David Berg in 1968 as the Children of God.
Source: The Family International, 'Who We Are' (familyinternational.org)
The documented record
Former members, journalists, and several governments have documented abusive practices in the movement's earlier decades, and historic bodies do not recognize it as a church in communion with them.
Source: Deborah Davis, The Children of God: The Inside Story (1984)
Christian Identity
Placement disputed
Christian Identity claims a biblical warrant for a racial reading of Israel, while historic bodies across the spectrum condemn it as a distortion of Christianity.
The movement's own account
Christian Identity adherents state that white Europeans are the true Israel of the Bible and ground the claim in a reading of Genesis and in British Israelism.
Source: Wesley Swift and the Church of Jesus Christ Christian, sermon literature
The historic churches' account
Historic bodies across the spectrum condemn Christian Identity as a racist distortion of Christianity, and civil authorities document it as an extremist movement rather than a church.
Source: Southern Poverty Law Center, 'Christian Identity'; Anti-Defamation League, 'Christian Identity'
Bodies within the Christian tradition whose status has been contested
Oriental Orthodox churches
Placement disputed
The Oriental Orthodox churches were labeled monophysite for fifteen centuries, and modern christological dialogue records that both sides confess the same faith in Christ under different formulas.
The historic label
For fifteen centuries the Oriental Orthodox churches were labeled monophysite by the imperial church, which held that their refusal of Chalcedon denied the full humanity of Christ.
Source: Council of Chalcedon (451), Definition of the Faith
The dialogue's finding
The agreed christological statements between the Eastern Orthodox and Oriental Orthodox churches (1989, 1990) and between Rome and the Coptic and Syriac churches record that both sides confess the same faith in Christ under different formulas, and that the ancient anathemas rested partly on misunderstanding.
Source: Joint International Commission, First Agreed Statement (1989) and Second Agreed Statement (1990); Common Declaration of Pope Paul VI and Patriarch Shenouda III (1973)
The Church of the East / Assyrian Church
Placement disputed
The Church of the East was labeled Nestorian by its opponents, and the 1994 Common Christological Declaration records a shared confession of Christ with Rome.
The historic label
The Church of the East was labeled Nestorian by its opponents, who held that it divided Christ into two persons.
Source: Council of Ephesus (431), acts
The dialogue's finding
The Common Christological Declaration of 1994 between Rome and the Assyrian Church of the East records a shared confession of Christ and recognizes that the divisions arose from misunderstandings of language and formula.
Source: Common Christological Declaration between the Catholic Church and the Assyrian Church of the East (1994)
Seventh-day Adventists
Placement disputed
Seventh-day Adventists confess the Trinity and salvation by grace through faith, while some evangelical writers classify the body as a cult for its distinctive doctrines and others receive it as evangelical.
The body's own account
The Seventh-day Adventist Church states that it is a Protestant Christian body holding the Trinity, the authority of Scripture, and salvation by grace through faith, distinguished by the seventh-day Sabbath and the investigative judgment.
Source: Seventh-day Adventist Fundamental Beliefs, General Conference of Seventh-day Adventists
The contested reception
Some evangelical writers classify Adventism as a cult because of the investigative judgment and the prophetic role of Ellen G. White, while others, since the 1950s conferences recorded in Questions on Doctrine, receive it as an evangelical body with distinctive doctrines.
Source: Seventh-day Adventists Answer Questions on Doctrine (1957); Walter Martin, The Truth About Seventh-day Adventism (1960)
Messianic Judaism
Placement disputed
Messianic Jewish congregations confess Jesus as the Jewish Messiah and keep Jewish practice, while mainstream Jewish bodies hold that this confession places a person within Christianity.
The congregations' own account
Messianic Jewish congregations state that Jesus (Yeshua) is the Jewish Messiah and that Jewish believers in him remain Jews and keep Jewish practice.
Source: Union of Messianic Jewish Congregations, statement of faith
The mainstream Jewish account
Mainstream Jewish bodies hold that belief in Jesus as Messiah places a person within Christianity and outside Judaism's own self-definition, while many Messianic believers are ethnically Jewish and the question of identity remains disputed.
Source: Central Conference of American Rabbis, responsa on Messianic Judaism
Progressive and liberal Protestantism
Placement disputed
Progressive and liberal Protestant bodies confess the historic faith in contemporary terms inside their denominations, while conservative writers hold that their denials place them outside the creedal bounds.
The bodies' own account
Progressive and liberal Protestant bodies state that they confess the historic faith in contemporary terms, holding the creeds as witnesses rather than tests, and they remain in communion with their denominations.
Source: United Church of Christ, statement of faith and the 'God Is Still Speaking' witness
The conservative account
Conservative bodies and writers hold that denying doctrines such as the virgin birth, the bodily resurrection, or the authority of Scripture places liberal Protestantism outside the bounds of the creedal faith.
Source: J. Gresham Machen, Christianity and Liberalism (1923)
Christian Universalism
Placement disputed
Christian universalists teach the final restoration of all persons through Christ as historic Christian doctrine, while the mainstream of the creedal tradition keeps final judgment and eternal punishment open.
The universalist account
Christian universalists state that the historic faith itself teaches the final restoration of all persons through Christ, citing the universal scope of the atonement in the New Testament and in several early church fathers.
Source: Christian Universalist Association, statement of faith; Gregory of Nyssa, On the Soul and the Resurrection
The mainstream account
The creedal churches' mainstream teaching holds that final judgment and eternal punishment remain open possibilities, and the fifth ecumenical council is traditionally associated with anathemas against Origenist universalism, whose scope historians dispute.
Source: Second Council of Constantinople (553), the anathemas against Origen and the scholarly dispute over their provenance
The Salvation Army and sacramental practice
Placement disputed
The Salvation Army is a Christian church that does not practice water baptism or the Lord's Supper, and churches that require the dominical sacraments question its place in the sacramental order.
The body's own account
The Salvation Army states that it is a Christian church and an international charitable movement, and that it does not practice water baptism or the Lord's Supper because its early converts came from backgrounds where the sacraments had become formalities, while it affirms the inward grace the sacraments signify.
Source: The Salvation Army, Handbook of Doctrine; salvationarmy.org, 'Why does The Salvation Army not baptise or hold communion services?'
The questioning account
Churches that require baptism and the eucharist as dominical sacraments question whether a body without them stands inside the sacramental order the creeds assume, while receiving its members' faith and service.
Source: Baptism, Eucharist and Ministry (World Council of Churches, Faith and Order Paper 111, 1982)
Historical movements excluded by the early church
Arianism
Placement disputed
Arius taught that the Son was created, and the Council of Nicaea answered that the Son is of one substance with the Father.
The movement's teaching
Arius taught that the Son was the first and greatest created being, that there was a time when he was not, and that he is God by grace rather than by nature.
Source: Arius, Thalia, fragments preserved in Athanasius, Orations Against the Arians
The early church's judgment
The Council of Nicaea in 325 confessed the Son as of one substance with the Father and anathematized the teaching that he was created or of another substance.
Source: Creed of Nicaea (325)
Nestorianism
Placement disputed
Nestorius objected to calling Mary the God-bearer, and the Council of Ephesus deposed him in defense of the unity of Christ's person.
The movement's teaching
Nestorius objected to calling Mary Theotokos, the God-bearer, preferring Christotokos, and taught a conjunction of the divine and human in Christ that his opponents read as two persons.
Source: Nestorius, The Bazaar of Heracleides
The early church's judgment
The Council of Ephesus in 431 deposed Nestorius and upheld Cyril of Alexandria's teaching on the unity of Christ's person and on Mary as Theotokos.
Source: Council of Ephesus (431), acts
Monophysitism
Placement disputed
The teachers labeled monophysite confessed one nature of Christ after the union, and Chalcedon answered with two natures without confusion or separation; the Oriental Orthodox churches reject the label for their own miaphysite confession.
The movement's teaching
Eutyches and his defenders held that Christ's humanity was absorbed into his divinity at the union, so that after the union there is one nature.
Source: Eutyches, confession before the Home Synod of Constantinople (448)
The early church's judgment
The Council of Chalcedon in 451 confessed Christ in two natures, without confusion, change, division, or separation.
Source: Council of Chalcedon (451), Definition of the Faith
Marcionism
Placement disputed
Marcion set the God of the Old Testament against the God of Jesus and cut the canon down, and the early church rejected both the teaching and the canon.
The movement's teaching
Marcion taught that the God of the Old Testament was a lesser maker, distinct from the good God revealed by Jesus, and he accepted a shortened canon of Luke and ten letters of Paul.
Source: Marcion, Antitheses, as reconstructed from Tertullian, Against Marcion
The early church's judgment
The early church rejected Marcion's two-god teaching and his canon, and Irenaeus and Tertullian wrote at length against him in defense of the one God of both Testaments.
Source: Irenaeus, Against Heresies; Tertullian, Against Marcion
Gnosticism
Placement disputed
The systems called Gnostic taught salvation by secret knowledge from a world made by a lesser maker, and Irenaeus answered them with the rule of faith.
The movements' teaching
The systems called Gnostic taught that the material world was made by an ignorant or hostile maker, and that salvation comes by secret knowledge of the divine spark within.
Source: The Gospel of Truth and the Apocryphon of John (Nag Hammadi library)
The early church's judgment
Irenaeus catalogued and refuted the Gnostic systems in Against Heresies, defending the rule of faith, the one Creator, and the public teaching of the apostles.
Source: Irenaeus, Against Heresies (c. 180)
Donatism
Placement disputed
The Donatists held that sacraments from lapsed clergy were invalid, and Augustine answered that a sacrament's validity rests on Christ rather than on the minister.
The movement's teaching
The Donatists held that sacraments administered by clergy who had lapsed under persecution were invalid, and they rebaptized those who came to them from the wider church.
Source: Petilian of Cirta, letters preserved in Augustine's replies
The early church's judgment
Augustine and the Conference of Carthage in 411 held that the validity of a sacrament rests on Christ, not on the purity of its minister.
Source: Augustine, On Baptism, Against the Donatists
Pelagianism
Placement disputed
Pelagius taught that human beings can choose the good by their own will, and the councils that followed Augustine condemned the teaching.
The movement's teaching
Pelagius taught that human beings can choose the good without a prior inward gift of grace, and he denied the transmission of Adam's sin to his descendants.
Source: Pelagius, Letter to Demetrias
The early church's judgment
The Councils of Carthage in 418 and Ephesus in 431 condemned Pelagian teaching, following Augustine's writings on grace and original sin.
Source: Augustine, On Nature and Grace; Canons of Carthage (418)
Bogomilism
Placement disputed
The Bogomils of the Balkans taught a dualist faith and rejected the church's sacraments and buildings, and Byzantine authorities condemned and persecuted them.
The movement's teaching
The Bogomils taught that the material world belonged to a fallen elder son of God, and they rejected the church's sacraments, icons, and buildings.
Source: Cosmas the Priest, Sermon Against the Bogomils (tenth century)
The church's judgment
Byzantine and Latin authorities condemned the Bogomils as dualists in the Manichaean line and persecuted them.
Source: Euthymius Zigabenus, Panoplia Dogmatica, commissioned by Alexios I
Catharism
Placement disputed
The Cathars of Languedoc held a dualist faith with a perfected elite, and the medieval church answered with preaching, a crusade, and the Inquisition.
The movement's teaching
The Cathars held a dualist faith in which the material world was the work of an evil power, kept a perfected elite called the perfecti, and rejected the material sacraments of the Catholic Church.
Source: The Book of Two Principles (Cathar treatise, thirteenth century)
The church's judgment
The Fourth Lateran Council condemned dualist heresy in 1215, and the Albigensian Crusade and the Inquisition suppressed the Cathars in the decades that followed.
Source: Fourth Lateran Council (1215), canon 1; records of the Albigensian Crusade
Christian-adjacent but not Christian
Nation of Islam
Placement disputed
The Nation of Islam arose in 1930s Detroit with a teaching on God that neither orthodox Islam nor Christianity recognizes as its own.
The movement's own account
The Nation of Islam states that Allah appeared in the person of Master Fard Muhammad and that Elijah Muhammad was his Messenger, and it arose in 1930s Detroit within Black American religious life.
Source: Elijah Muhammad, Message to the Blackman in America (1965)
The scholarly classification
Scholars classify the Nation of Islam as a distinct new religious movement rather than a form of Islam or Christianity, and orthodox Muslim bodies do not recognize its teaching on God.
Source: Encyclopaedia Britannica, 'Nation of Islam'
Rastafari
Placement disputed
Rastafari venerates Haile Selassie I and reads the Bible through Ethiopian history, and Christian bodies regard it as a distinct religion while many Rastas describe their faith in biblical terms.
The movement's own account
Rastafari venerates Haile Selassie I of Ethiopia as God incarnate or as the returned messiah, reads the Bible through Ethiopian history, and arose in 1930s Jamaica.
Source: The Holy Piby (1924); Leonard Howell, The Promised Key (1935)
The classification
Christian bodies regard Rastafari as a distinct religion rather than a church, while many Rastas describe their faith in biblical and Christian terms.
Source: Encyclopaedia Britannica, 'Rastafari movement'
Cao Dai
Placement disputed
Cao Dai honors Jesus among its saints inside its own revelation, and Christian bodies classify it as a syncretic new religion rather than a church.
The religion's own account
Cao Dai, founded in Vietnam in 1926, states that God has revealed himself in a third period of salvation and honors Jesus among its saints alongside the Buddha, Laozi, and Confucius.
Source: Caodaist scripture, The Divine Path to Eternal Life
The classification
Christian bodies classify Cao Dai as a syncretic new religion, not a Christian church, while Cao Dai itself honors Christ within its own pantheon.
Source: Encyclopaedia Britannica, 'Cao Dai'
Theosophy
Placement disputed
The Theosophical Society teaches an ancient wisdom behind all religions and regards Jesus as one master among several, and Christian bodies classify it as an esoteric movement outside Christianity.
The movement's own account
The Theosophical Society, founded in 1875, teaches an ancient wisdom standing behind all religions and regards Jesus as one master among several.
Source: H. P. Blavatsky, The Key to Theosophy (1889)
The classification
Christian bodies classify Theosophy as an esoteric movement outside Christianity, although it borrows Christian vocabulary.
Source: Encyclopaedia Britannica, 'Theosophy'
New Age Spirituality
Placement disputed
New Age spirituality commonly honors Jesus as an enlightened teacher rather than as God incarnate, and Christian bodies classify its teaching as incompatible with the creeds at several points.
The movement's own account
New Age spirituality is a decentralized movement drawing on many traditions, and it commonly honors Jesus as an enlightened teacher or ascended master rather than as God incarnate.
Source: Marilyn Ferguson, The Aquarian Conspiracy (1980)
The classification
Christian bodies classify New Age teaching as incompatible with the creeds at the points of God, Christ, and salvation, while its adherents often describe themselves as spiritual rather than Christian.
Source: Pontifical Council for Culture, Jesus Christ the Bearer of the Water of Life (2003)
Druze
Placement disputed
The Druze faith is a closed monotheistic tradition that arose from Ismaili Islam in the eleventh century and stands as its own religion.
The community's own account
The Druze faith, arising in eleventh-century Egypt from Ismaili Islam, is a closed monotheistic tradition whose teachings are guarded in the Epistles of Wisdom, and it does not seek converts.
Source: Epistles of Wisdom (Rasa'il al-Hikma)
The classification
The Druze are a distinct religious community, neither Christian nor, in the judgment of most Muslim authorities, within Islam, and the community's own self-understanding is of a separate faith.
Source: Encyclopaedia Britannica, 'Druze'
Mandaeism
Placement disputed
The Mandaeans venerate John the Baptist as the true prophet and regard Jesus as a false messiah, and scholars classify their religion as a Gnostic faith of late antiquity.
The community's own account
The Mandaeans of Iraq and Iran venerate John the Baptist as the true prophet, practice repeated baptism in flowing water, and regard Jesus as a false messiah who distorted John's teaching.
Source: Ginza Rabba (the Mandaean scripture)
The scholarly classification
Scholars classify Mandaeism as a Gnostic religion of late antiquity, distinct from both Christianity and Judaism.
Source: Encyclopaedia Britannica, 'Mandaeanism'
This register is maintained under the assessment criteria. It reports classifications and documents disagreements; it does not rank sincerity, spiritual standing, or the eternal state of any person.