TrinityThe Christian doctrine of the Trinity (Trinitas, from trinus 'threefold') is the central doctrine concerning the nature of God in most Christian churches, which defines one God existing in three , , consubstantial divine persons: God the Father, God the Son (Jesus Christ) and God the Holy Spirit, three distinct persons (hypostases) sharing one essence/substance/nature (homoousion) As the Fourth Lateran Council declared, it is the Father who s, the Son who is , and the Holy Spirit who proceeds.
Proto-orthodox ChristianityThe term proto-orthodox Christianity or proto-orthodoxy describes the early Christian movement that was the precursor of Christian orthodoxy. It was coined by Bentley Layton (a major scholar of Gnosticism and Coptologist at Yale), but is often erroneously attributed to New Testament scholar Bart D. Ehrman. Ehrman argues that this group from the moment it became prominent by the end of the third century, "stifled its opposition, it claimed that its views had always been the majority position and that its rivals were, and always had been, 'heretics', who willfully 'chose' to reject the 'true belief'.
EbionitesEbionites (Ebiōnaîoi, derived from Hebrew אֶבְיוֹנִים (or אֶבְיוֹנִם), ʾEḇyōnīm, meaning 'the poor' or 'poor ones') as a term refers to a Jewish Christian sect, which viewed poverty as a blessing, that existed during the early centuries of the Common Era. The Ebionites embraced an adoptionist Christology, thus understanding Jesus of Nazareth as a mere man who, by virtue of his righteousness in following the Law of Moses, was chosen by God to be the messianic "prophet like Moses".
AdoptionismAdoptionism, also called dynamic monarchianism, is an early Christian nontrinitarian theological doctrine, subsequently revived in various forms, which holds that Jesus was adopted as the Son of God at his baptism, his resurrection, or his ascension. How common adoptionist views were among early Christians is debated, but it appears to have been most popular in the first, second, and third centuries. Some scholars see adoptionism as the belief of the earliest followers of Jesus, based on the epistles of Paul and other early literature.
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.
History of ChristianityThe history of Christianity concerns the Christian religion, Christian countries, and the Christians with their various denominations, from the 1st century to the present. Christianity originated with the ministry of Jesus, a Jewish teacher and healer who proclaimed the imminent Kingdom of God and was crucified AD 30–33 in Jerusalem in the Roman province of Judea. His followers believe that, according to the Gospels, he was the Son of God and that he died for the forgiveness of sins and was raised from the dead and exalted by God, and will return soon at the inception of God's kingdom.
ManichaeismManichaeism (ˌmænᵻˈkiːɪzəm; in New Persian آیینِ مانی Āyīn-e Mānī; ) is a former major universal religion, founded in the 3rd century CE by the Parthian prophet Mani (216–274 CE), in the Sasanian Empire. Manichaeism teaches an elaborate dualistic cosmology describing the struggle between a good, spiritual world of light, and an evil, material world of darkness. Through an ongoing process that takes place in human history, light is gradually removed from the world of matter and returned to the world of light, whence it came.
KenosisIn Christian theology, kenosis (kénōsis) is the "self-emptying" of Jesus. The word ἐκένωσεν () is used in the Epistle to the Philippians: " made himself nothing" (NIV), or "[he] emptied himself" (NRSV) (Philippians 2:7), using the verb form κενόω (), meaning "to empty". The exact meaning varies among theologians. The less controversial meaning is that Jesus emptied his own desires, becoming entirely receptive to God's divine will, "obedient to the point of death — even death on a cross.
