Heresy in ChristianityHeresy in Christianity denotes the formal denial or doubt of a core doctrine of the Christian faith as defined by one or more of the Christian churches. The study of heresy requires an understanding of the development of orthodoxy and the role of creeds in the definition of orthodox beliefs, since heresy is always defined in relation to orthodoxy. Orthodoxy has been in the process of self-definition for centuries, defining itself in terms of its faith by clarifying beliefs in opposition to people or doctrines that are perceived as incorrect.
Papal supremacyPapal supremacy is the doctrine of the Catholic Church that the Pope, by reason of his office as Vicar of Christ, the visible source and foundation of the unity both of the bishops and of the whole company of the faithful, and as pastor of the entire Catholic Church, has full, supreme, and universal power over the whole church, a power which he can always exercise unhindered: that, in brief, "the Pope enjoys, by divine institution, supreme, full, immediate, and universal power in the care of souls.
JansenismJansenism was an early modern theological movement within Catholicism, primarily active in the Kingdom of France, that arose in an attempt to reconcile the theological concepts of free will and divine grace. Jansenists claimed to profess the true doctrine of grace as put forth by Augustine of Hippo. In 1653, Pope Innocent X promulgated the bull Cum occasione, which condemned five errors attributed to Jansenism, including the idea that Christ did not die or shed his blood for all men.
Confession of PeterIn Christianity, the Confession of Peter (translated from the Matthean Vulgate Latin section title: Confessio Petri) refers to an episode in the New Testament in which the Apostle Peter proclaims Jesus to be the Christ (Jewish Messiah). The proclamation is described in the three Synoptic Gospels: Matthew 16:13–20, Mark 8:27–30 and Luke 9:18–21. Depending on which gospel one reads, Peter either says: 'You are the Messiah' or 'the Christ' (Mark 8:29); or 'You are the Messiah, the Son of the living God', (Matthew 16:16), or 'God's Messiah' or 'The Christ of God' (Luke 9:20).
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.
MonothelitismMonothelitism, or monotheletism (from monothelētismós), is a theological doctrine in Christianity, that holds Christ as having only one will. The doctrine is thus contrary to dyothelitism, a Christological doctrine that holds Christ as having two wills (divine and human). Historically, monothelitism was closely related to monoenergism, a theological doctrine that holds Jesus Christ as having only one Energeia/Nature. Both doctrines were at the center of Christological disputes during the 7th century.
One true churchThe 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, the Christian Churches/Churches of Christ, the Churches of Christ, and the Lutheran Churches, as well as certain Baptists.
Biblical infallibilityBiblical infallibility is the belief that what the Bible says regarding matters of faith and Christian practice is wholly useful and true. It is the "belief that the Bible is completely trustworthy as a guide to salvation and the life of faith and will not fail to accomplish its purpose." Historically, Jewish and Christian interpreters of the Bible have seen it as reliable and trustworthy, but such views do not imply in equating veracity to historicity, scientificity or even facticity.
Westminster Confession of FaithThe Westminster Confession of Faith, or simply the Westminster Confession, is a Reformed confession of faith. Drawn up by the 1646 Westminster Assembly as part of the Westminster Standards to be a confession of the Church of England, it became and remains the "subordinate standard" of doctrine in the Church of Scotland and has been influential within Presbyterian churches worldwide. In 1643, the English Parliament called upon "learned, godly and judicious Divines" to meet at Westminster Abbey in order to provide advice on issues of worship, doctrine, government and discipline of the Church of England.
AnathemaThe word anathema has two main meanings. One is to describe something or someone that is hated or avoided. The other is to refer to a formal excommunication by a church. These meanings come from the New Testament, where an anathema was a person or thing cursed or condemned by God. In the Old Testament, an anathema was something or someone dedicated to God as a sacrifice, or cursed and separated from God because of sin. These represent two types of setting apart, one for devotion, the other for destruction.
