The following outline is provided as an overview of and topical guide to Christian theology:
Christian theology is the study of Christian belief and practice. Such study concentrates primarily upon the texts of the Old Testament and the New Testament as well as on Christian tradition. Christian theologians use biblical exegesis, rational analysis, and argument. Theology might be undertaken to help the theologian better understand Christian tenets, to make comparisons between Christianity and other traditions, to defend Christianity against objections and criticism, to facilitate reforms in the Christian church, and to assist in the propagation of Christianity.
There are many methods of categorizing different approaches to Christian theology. For a historical analysis, see the main article on the History of Christian theology.
Sub-disciplines
Christian theologians may be specialists in one or more theological sub-disciplines. These sub-disciplines are often included in certain job titles such as 'Professor of x', 'Senior Lecturer in y':
Apologetics/polemics – studying Christian theology as it compares to non-Christian worldviews in order to defend the faith and challenge beliefs that lie in contrast with Christianity.
Biblical hermeneutics – interpretation of the Bible, often with particular emphasis on the nature and constraints of contemporary interpretation. Hermeneutics takes into consideration the culture at the time of writing, who wrote the text, who was the text written for, etc.
Biblical studies – interpretation of the Bible, often with particular emphasis on historical-critical investigation.
Biblical theology – interpretation of the Bible, often with particular emphasis on links between biblical texts and the topics of systematic or dogmatic theology.[1]
Ecumenical theology – comparing the doctrines of the diverse churches (e.g., Eastern Orthodox, Roman Catholic, the various Protestant denominations) with the goal of promoting unity among them
Historical theology – studying Christian theology via the thoughts of other Christians throughout the centuries.[1]
Homiletics – in theology the application of general principles of rhetoric to public preaching.
Moral theology, specifically Christian ethics – explores the moral and ethical dimensions of the religious life
Natural theology – the discussion of those aspects of theology that can be investigated without the help of revelation scriptures or tradition (sometimes contrasted with "positive theology").
Patristics or patrology—studies the teaching of Church Fathers, or the development of Christian ideas and practice in the period of the Church Fathers.
Philosophical theology – the use of philosophical methods in developing or analyzing theological concepts.[1]
Pragmatic or practical theology – studying theology as it relates to everyday living and service to God, including serving as a religious minister.
Spiritual theology—studying theology as a means to orthopraxy; scripture and tradition are both used as guides for spiritual growth and discipline.
Systematic theology (doctrinal theology, dogmatic theology or philosophical theology)—focused on the attempt to arrange and interpret the ideas current in the religion. This is also associated with constructive theology.
Theological hermeneutics – the study of the manner of construction of theological formulations. Related to theological methodology.
Major topics
These topics crop up repeatedly in Christian theology; composing the main recurrent 'loci' around which Christian theological discussion revolves.
Bible (Holy Scripture) – the nature and means of its inspiration, etc.; including hermeneutics (the development and study of theories of the interpretation and understanding of texts and the topic of Biblical law in Christianity)
Eschatology – the study of the last things, or end times. Covers subjects such as death and the afterlife, the end of history, the end of the world, the last judgment, the nature of hope and progress, etc.
Christology – the study of JesusChrist, of his nature(s), and of the relationship between his divinity and humanity;
Divine providence – the study of sovereignty, superintendence, or agency of God over events in people's lives and throughout history.
Apophatic theology – negative theology which seeks to describe God by negation (e.g., immutable, impassible ). It is the discussion of what God is not, or the investigation of how language about God breaks down. Apophatic theology often is contrasted with "Cataphatic theology".
A traditional pattern
In many Christian seminaries, the four Great Departments of Theology are:
Tradition (i.e., its authority relative to Scripture and role of Tradition in Church Councils).
Controversial movements
Christians have had theological disagreements since the time of Jesus. Theological disputes have given rise to many schisms and different Christian denominations, sects and movements.
Arianism – doctrines rejecting Christ's divinity in relation to the God the Father but proposed either "similar in substance", "similar", or "dissimilar" as the correct alternative
Antidicomarianites and related Psilanthropism
Augustinianism - strong assertion of original sin, important doctrine in the Roman Catholic Church.
Apollinarianism - Belief that Jesus had a human body and lower soul (the seat of the emotions) but a divine mind
Collyridianism - The belief that the Trinity consists of the Father, Son, and Mary, and that the Son results from the marital union between the other two.
Conciliarism - emphasis that Popes were subservient to ecumenical councils
Docetism - belief that historical, human bodily existence of Christ was mere semblance without any true reality
Donatism - rigorist group holding that the church must be a church of saints, not sinners and that sacraments administered by traditores were invalid.
Dyophysitism - doctrines regarding dual natures of Christ's divinity and humanity within single person, culminated with Neo-Chalcedonism
Free Spirit - belief that its believer could communicate directly with God and did not need the Christian church for intercession.
Gnosticism – Broad classification for beliefs that generally rejected the goodness of the physical to emphasize the spiritual, also emphasized salvation through "hidden teachings."
Iconoclasm - belief that the veneration of icons was idolatry
Iconodulism - belief that the veneration of icons is proper
Judaizers - faction of the Jewish Christians, both of Jewish and non-Jewish origins, who regarded the Levitical laws as still binding on all Christians, includes Ebionitism and Nazorean
Manichaeism - A major dualistic religion brought by Mani stating that good and evil are equally powerful, and that material things are evil.
Miaphysitism - doctrine of the Oriental Orthodox Church
Monoenergism and related Monothelitism - developed as a compromise between miaphysitism with dyophysitism
Montanism - encouraged ecstatic prophesying and believed that their prophecies superseded and fulfilled the doctrines proclaimed by the Apostles.
Nestorianism - doctrine of the Church of the East. However, the Church of the East itself considers this label as a pejorative term and instead opts for the term 'dyophysitism of Theodore of Mopsuestia'
Petrobrusians - considered the New Testament epistles to have a subordinate authority, questioning their apostolic origin, and rejected the authority of the Old Testament
Paulicianism – medieval dualist movement that believed the material world is evil, and the only way to salvation is to reject it (evolved into Tondrakianism, Bogomilism, Bosnian Church, Pasagians, and Catharism)
Pelagianism – denial of original sin and helplessness of sinner to save himself, strong affirmation of libertarian free will
Semi-Pelagianism – developed as a compromise between Pelagianism and Augustinianism, the Eastern Orthodox Church is accused of believing in it by Protestantism.
Proto-Protestantism - and related Medieval Restorationism (included Arnoldists, Berengarians, Joachimites, Apostolic Brethren and then, the Dulcinians)
Universalism – In various forms, the belief that all people will ultimately be reconciled with God; most famously defended by Origen.
Post-Reformation
Because the Reformation promoted the idea that Christians could expound their own views of theology based on the notion of "sola scriptura," the Bible alone, many theological distinctions have occurred between the various Protestant denominations. The differences between many of the denominations are relatively minor; however, and this has helped ecumenical efforts in recent times.
Arminianism – affirms man's freedom to accept or reject God's gift of salvation; identified with Dutch Reformed theologian Jacobus Arminius, developed by Hugo Grotius, defended by the Remonstrants, and popularized by John Wesley. Key doctrine of Methodist churches, adopted by many Baptists and some Congregationalists.
Charismaticism – Movement in many Protestant and some Catholic churches that emphasizes the gifts of the Spirit and the continual working of the Holy Spirit within the body of Christ; often associated with glossolalia (i.e., speaking in tongues) and divine healing.
Congregationalism – Form of governance used in Congregationalist, Baptist, and Pentecostal churches in which each congregation is self-governing and independent of all others.
Counter-Reformation (or Catholic Reformation): The Roman Catholic response to the Protestant Reformation (see also Council of Trent).
Creation Spirituality – Panentheist theology.
Deism – The general doctrine that no faith is necessary for justified belief in God's existence or the doctrine that God does not intervene in earthly affairs (contrasts with Fideism).
Dispensationalism – Belief in a conservative, Biblically literalist hermeneutic and philosophy of history that, by stressing the dichotomy between Israel and the Church, rejects supersessionism (commonly referred to as "replacement theology").
Evangelicalism – Typically conservative, predominantly Protestant outlook that prioritizes evangelism above all or most other activities of the Church (see also neo-evangelicalism).
Eastern Protestant Christianity includes P'ent'ay and Saint Thomas Anglicans
Feeneyism
Fideism – The doctrine that faith is irrational, that God's existence transcends logic, and that all knowledge of God is on the basis of faith (contrasts with Deism).
Keswickianism – Protestant theological tradition within Evangelical Christianity that espoused a distinct teaching on the doctrines of entire sanctification, healing, and spiritual gifts.
Latter Day Saint movement (Mormonism) – Belief that the Book of Mormon and others to be additional divine scriptures; belief in living prophets; generally reject the Nicene Creed and other early creeds.
New Thought – Movement based on 19th century New England belief in positive thinking. Several denominations arose from it including Unity Church, and Religious Science.
Nonconformism – Advocacy of religious liberty; includes Quakers, Methodists, Baptists, Congregationalists and Salvationists.
Restorationism (Christian primitivism) – The doctrine that most of the modern Church is apostate; includes the Millerites, Seventh-day Adventists, Jehovah's Witnesses, and Latter Day Saints
Supersessionism – Belief that the Christian Church, the body of Christ, is the only elect people of God in the new covenant age (see also covenant theology)
Ultramontanism – A movement within 19th-century Roman Catholicism to emphasize papal authority, particularly in the wake of the French Revolution and the secularization of the state
Unitarianism – Rejects a holy "Trinity" and also the divinity of Christ, (related to Biblical unitarianism, Polish Brethren, and American Unitarian Association).
Contemporary theological movements
In addition to the movements listed above, the following are some of the movements found amongst Christian theologians
ETS[2] is an academic society of Biblical scholars, teachers, pastors, students, and others involved in evangelical scholarship.
International Academy of Practical Theology (IAPT)
The purpose of the International Academy of Practical Theology is the study of and critical reflection on practical theological thought and action.[3] This critical reflection should be pursued with attention to the various historical and cultural contexts in which practical theology is done. Out of respect for the diversity of these contexts, the academy seeks to promote international, interracial, and ecumenical dialogue and understanding.