Christian views on sinIn Christianity, 'sin' is an immoral act considered to be a transgression of divine law. The doctrine of sin is central to the Christian faith, since its basic message is about redemption in Christ. Hamartiology, a branch of Christian theology which is the study of sin, describes sin as an act of offence against God by despising his persons and Christian biblical law, and by injuring others. Christian hamartiology is closely related to concepts of natural law, moral theology and Christian ethics.
PurgatoryPurgatory ( purgatorium, borrowed into English via Anglo-Norman and Old French) is, according to the belief of some Christian denominations and Islam, an intermediate state after physical death for expiatory purification. The process of purgatory is the final purification of the elect, which is entirely different from the punishment of the damned. Tradition, by reference to certain texts of scripture, sees the process as involving a cleansing fire. Some forms of Western Christianity, particularly within Protestantism, deny its existence.
Christian views on the Old CovenantThe Mosaic covenant or Law of Moses - which Christians generally call the "Old Covenant" (in contrast to the New Covenant) - played an important role in the origins of Christianity and has occasioned serious dispute and controversy since the beginnings of Christianity: note for example Jesus' teaching of the Law during his Sermon on the Mount and the circumcision controversy in early Christianity.
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.
Typology (theology)Typology in Christian theology and biblical exegesis is a doctrine or theory concerning the relationship of the Old Testament to the New Testament. Events, persons or statements in the Old Testament are seen as types prefiguring or superseded by antitypes, events or aspects of Christ or his revelation described in the New Testament. For example, Jonah may be seen as the type of Christ in that he emerged from the fish's belly and thus appeared to rise from death.
Christian ethicsChristian ethics, also known as moral theology, is a multi-faceted ethical system. It is a virtue ethic, which focuses on building moral character, and a deontological ethic which emphasizes duty. It also incorporates natural law ethics, which is built on the belief that it is the very nature of humans – created in the image of God and capable of morality, cooperation, rationality, discernment and so on – that informs how life should be lived, and that awareness of sin does not require special revelation.
Perseverance of the saintsPerseverance of the saints (also called preservation of the saints) is a Christian teaching that asserts that once a person is truly "born of God" or "regenerated" by the indwelling of the Holy Spirit, they will continue doing good works and believing in God until the end of their life. Sometimes this position is held in conjunction with Reformed Christian confessions of faith in traditional Calvinist doctrine, which argues that all men are "dead in trespasses and sins", and so apart from being resurrected from spiritual death to spiritual life, no-one chooses salvation alone.
Sola scripturaSola scriptura (Latin for 'by scripture alone') is a Christian theological doctrine held by most Protestant Christian denominations, in particular the Lutheran and Reformed traditions, that posits the Bible as the sole infallible source of authority for Christian faith and practice. The Catholic Church considers it heterodox and generally the Orthodox churches consider it to be contrary to the phronema of the Church.
Great ApostasyThe Great Apostasy is a concept within Christianity to describe a perception that mainstream Christian Churches have fallen away from the original faith founded by Jesus and promulgated through his twelve Apostles. A belief in a Great Apostasy has been characteristic of the Restorationist tradition of Christianity, which includes unrelated Restorationist groups emerging after the Second Great Awakening, such as the Christadelphians, Latter Day Saints, Jehovah's Witnesses, and Iglesia ni Cristo.
Baptismal regenerationBaptismal regeneration is the name given to doctrines held by the Catholic, Eastern Orthodox, Oriental Orthodox, Lutheran, Anglican churches, and other Protestant denominations which maintain that salvation is intimately linked to the act of baptism, without necessarily holding that salvation is impossible apart from it. Etymologically, the term means "being born again" (regeneration, or rebirth) "through baptism" (baptismal). Etymology concerns the origins and root meanings of words, but these "continually change their meaning, .
