Christian theologyChristian theology is the theology of Christian belief and practice. Such study concentrates primarily upon the texts of the Old Testament and of the New Testament, as well as on Christian tradition. Christian theologians use biblical exegesis, rational analysis and argument.
Sacred traditionSacred tradition, also called Holy tradition or Apostolic tradition, is a theological term used in Christian theology. According to this theological position, sacred tradition is the foundation of the doctrinal and spiritual authority of Christianity and of the Bible. Thus, the Bible must be interpreted within the context of sacred tradition and within the community of the denomination. The denominations that ascribe to this position are the Catholic, Eastern Orthodox, and Oriental Orthodox churches, and the Assyrian churches (the Ancient Church of the East and the Assyrian Church of the East).
Four Marks of the ChurchThe Four Marks of the Church, also known as the Attributes of the Church, describes four distinctive adjectives of traditional Christian ecclesiology as expressed in the Niceno-Constantinopolitan Creed completed at the First Council of Constantinople in AD 381: "[We believe] in one, holy, catholic, and apostolic Church.
Marian devotionsMarian devotions are external pious practices directed to the person of Mary, mother of God, by members of certain Christian traditions. They are performed in Catholicism, High Church Lutheranism, Anglo-Catholicism, Eastern Orthodoxy and Oriental Orthodoxy, but generally rejected in other Christian denominations. Such devotional prayers or may be accompanied by specific requests for Mary's intercession with God. There is significant diversity of form and structure in Marian devotions practiced by different groups of Christians.
Apostles in the New TestamentIn Christian theology and ecclesiology, the apostles, particularly the Twelve Apostles (also known as the Twelve Disciples or simply the Twelve), were the primary disciples of Jesus according to the New Testament. During the life and ministry of Jesus in the 1st century AD, the apostles were his closest followers and became the primary teachers of the gospel message of Jesus. There is also an Eastern Christian tradition derived from the Gospel of Luke of there having been as many as seventy apostles during the time of Jesus' ministry.
Faith in ChristianityWithin Christianity, faith, in one sense, is often discussed in terms of believing God's promises, trusting in his faithfulness, and relying on God's character and faithfulness to act. Some denominations believe in the New Covenant and in the doctrine of salvation by faith alone (sola fide). According to most Christian traditions and denominations, Christian faith requires a belief in the resurrection of Jesus, and the Agony in the Garden which Jesus states is the plan of God the Father.
Christian head coveringChristian head covering, also known as Christian veiling, is the traditional practice of women covering their head in a variety of Christian denominations. Some Christian women, based on historic Catholic, Lutheran, Moravian, Reformed, Anglican, Methodist, and Plymouth Brethren teaching, wear the head covering in public worship and during private prayer at home (though some women belonging to these traditions may also choose to wear the head covering outside of prayer and worship), while others, especially traditional Anabaptist Christians, believe women should wear head coverings at all times, based on Saint Paul's dictum that Christians are to "pray without ceasing" (1 Thessalonians 5:17), Saint Paul's teaching that women being unveiled is dishonourable, and as a reflection of the created order.
Christian liturgyChristian liturgy is a pattern for worship used (whether recommended or prescribed) by a Christian congregation or denomination on a regular basis. The term liturgy comes from Greek and means "public work". Within Christianity, liturgies descending from the same region, denomination, or culture are described as ritual families. The majority of Christian denominations hold church services on the Lord's Day (with many offering Sunday morning and Sunday evening services); a number of traditions have mid-week Wednesday evening services as well.
CatechismA catechism (pronˈkætəˌkɪzəm; from κατηχέω, "to teach orally") is a summary or exposition of doctrine and serves as a learning introduction to the Sacraments traditionally used in catechesis, or Christian religious teaching of children and adult converts. Catechisms are doctrinal manuals – often in the form of questions followed by answers to be memorised – a format that has been used in non-religious or secular contexts as well.
Church FathersThe Church Fathers, Early Church Fathers, Christian Fathers, or Fathers of the Church were ancient and influential Christian theologians and writers who established the intellectual and doctrinal foundations of Christianity. The historical period in which they worked became known as the Patristic Era and spans approximately from the late 1st to mid-8th centuries, flourishing in particular during the 4th and 5th centuries, when Christianity was in the process of establishing itself as the state church of the Roman Empire.