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.
ProtestantismProtestantism is a branch of Christianity that follows the theological tenets of the Protestant Reformation, a movement that began in the 16th century with the goal of reforming the Catholic Church from perceived errors, abuses, and discrepancies. Protestantism emphasizes the Christian believer's justification by God in faith alone (sola fide) rather than by a combination of faith with good works as in Catholicism; the teaching that salvation comes by divine grace or "unmerited favor" only (sola gratia); the priesthood of all believers in the Church; and the sola scriptura ("scripture alone") that posits the Bible as the sole infallible source of authority for Christian faith and practice.
Penal substitutionPenal substitution (sometimes, esp. in older writings, called forensic theory) is a theory of the atonement within Protestant Christian theology, which declares that Christ, voluntarily submitting to God the Father's plan, was punished (penalized) in the place of sinners (substitution), thus satisfying the demands of justice so God can justly forgive sins making us at one with God (atonement). It began with the German Reformation leader Martin Luther and continued to develop within the Calvinist tradition as a specific understanding of substitutionary atonement.
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.
Christian universalismChristian universalism is a school of Christian theology focused around the doctrine of universal reconciliation – the view that all human beings will ultimately be saved and restored to a right relationship with God. "Christian universalism" and "the belief or hope in the universal reconciliation through Christ" can be understood as synonyms. Opponents of this school, who hold that eternal damnation is the ultimate fate of some or most people, are sometimes called "infernalists.
Redemption (theology)Redemption is an essential concept in many religions, including Judaism, Christianity, and Islam. The term implies that something has been paid for or bought back, like a slave who has been set free through the payment of a ransom. Salvation in Christianity Redeemer (Christianity) In Christian theology, redemption (Απολύτρωσης) refers to the deliverance of Christians from sin and its consequences. Christians believe that all people are born into a state of sin and separation from God, and that redemption is a necessary part of salvation in order to obtain eternal life.
Satisfaction theory of atonementThe satisfaction theory of atonement is a theory in Catholic theology which holds that Jesus Christ redeemed humanity through making satisfaction for humankind's disobedience through his own supererogatory obedience. The theory draws primarily from the works of Anselm of Canterbury, specifically his Cur Deus Homo ("Why was God a man?"). It has been traditionally taught in the Roman Catholic tradition of Western Christianity. Since one of God's characteristics is justice, affronts to that justice must be atoned for.
Ransom theory of atonementThe ransom theory of atonement was a theory in Christian theology as to how the process of Atonement in Christianity had happened. It therefore accounted for the meaning and effect of the death of Jesus Christ. It was one of a number of historical theories, and was mostly popular between the 4th and 11th centuries, with little support in recent times. It originated in the early Church, particularly in the work of Origen.
Crucifixion of JesusThe crucifixion of Jesus occurred in 1st-century Judaea, most likely in AD 30 or AD 33. It is described in the four canonical gospels, referred to in the New Testament epistles, attested to by other ancient sources, and is considered an established historical event. There is no consensus among historians on the details. In the canonical gospels, Jesus is arrested and tried by the Sanhedrin, and then by Pontius Pilate, who sentences him to flagellation and then hands him over to soldiers for crucifixion.
ChristologyIn Christianity, Christology (from the Greek Khristós and -logia), translated from Greek as 'the study of Christ', is a branch of theology that concerns Jesus. Different denominations have different opinions on questions such as whether Jesus was human, divine, or both, and as a messiah what his role would be in the freeing of the Jewish people from foreign rulers or in the prophesied Kingdom of God, and in the salvation from what would otherwise be the consequences of sin.
