Trinity in the context of "Nontrinitarian"

In Christianity, Jesus is the Son of God as chronicled in the Bible's New Testament, as well as prophesied in the Old Testament, and is held to be God the Son, a prosopon (Person) of the Trinity of God. Christians believe him to be the Jewish messiah (giving him the title Christ), who was prophesied in the Bible's Old Testament. Through Jesus's crucifixion and resurrection, Christians believe that God offers humans salvation and eternal life, with Jesus's death atoning for all sin.

These teachings emphasize that as the Lamb of God, Jesus chose to suffer nailed to the cross at Calvary as a sign of his obedience to the will of God, as an "agent and servant of God". Jesus's choice positions him as a man of obedience, in contrast to Adam's disobedience. According to the New Testament, after God raised him from the dead, Jesus ascended to heaven to sit at the right hand of God the Father, with his followers awaiting his return to Earth and God's subsequent Last Judgement.

Augustine of Hippo (/ɔːˈɡʌstɪn/ aw-GUST-in, US also /ˈɔːɡəstiːn/ AW-gə-steen; Latin: Aurelius Augustinus Hipponensis; 13 November 354 – 28 August 430) was a theologian and philosopher, the bishop of Hippo Regius from Thagaste in Numidia Cirtensis, (present-day Souk Ahras, Algeria). His writings deeply influenced the development of Western philosophy and Western Christianity, and he is viewed as one of the most important Church Fathers of the Latin Church in the Patristic Period. His many important works include The City of God, On Christian Doctrine, and Confessions.

According to his contemporary, Jerome of Stridon, Augustine "established anew the ancient Faith". In his youth he was drawn to the Manichaean faith, and later to the Hellenistic philosophy of Neoplatonism. After his conversion to Christianity and baptism in 386, Augustine developed his own approach to philosophy and theology, accommodating a variety of methods and perspectives. Believing the grace of Christ was indispensable to human freedom, he helped formulate the doctrine of original sin and made significant contributions to the development of just war theory. When the Western Roman Empire began to disintegrate, Augustine imagined the Church as a spiritual City of God, distinct from the material Earthly City. The segment of the Church that adhered to the concept of the Trinity as defined by the Council of Nicaea and the Council of Constantinople closely identified with Augustine's On the Trinity.

A Christian denomination is a distinct religious body within Christianity, identified by traits such as a name, organization and doctrine. Individual bodies, however, may use alternative terms to describe themselves, such as church, convention, communion, assembly, house, union, network, or sometimes fellowship. Divisions between one denomination and another are primarily defined by authority and doctrine. Issues regarding the nature of Jesus, Trinitarianism, salvation, the authority of apostolic succession, eschatology, conciliarity, papal supremacy and papal primacy among others may separate one denomination from another. Groups of denominations, often sharing broadly similar beliefs, practices, and historical ties—can be known as "branches of Christianity" or "denominational families" (e.g. Eastern or Western Christianity and their sub-branches). These "denominational families" are often imprecisely also called denominations.

Christian denominations since the 20th century have often involved themselves in ecumenism. Ecumenism refers to efforts among Christian bodies to develop better understandings and closer relationships. It also refers to efforts toward visible unity in the Christian Church, though the terms of visible unity vary for each denomination of Christianity, as certain groups teach they are the one true church, or that they were divinely instituted for the propagation of a certain doctrine. The largest ecumenical organization in Christianity is the World Council of Churches.

God the Son (Greek: Θεὸς ὁ Υἱός, Latin: Deus Filius) or God the Word (Greek: Θεὸς ὁ Λόγος, Latin: Deus Verbum) is the second Person of the Trinity in Christian theology. According to mainstream Christian doctrine, God the Son, in the form of Jesus Christ, is the incarnation of the eternal, pre-existent divine Logos (Koine Greek for "word") through whom all things were created. Although the precise term "God the Son" does not appear in the Bible, it serves as a theological designation expressing the understanding of Jesus as a part of the Trinity, distinct yet united in essence with God the Father and God the Holy Spirit (the first and third Persons of the Trinity respectively).

In Christianity, the Logos (Greek: o Λόγος, lit. 'the word, discourse, or reason') is a name or title of Jesus Christ, seen as the pre-existent second person of the Trinity. In the Douay–Rheims, King James, New International, and other versions of the Bible, the first verse of the Gospel of John reads:

In these translations, Word is used for Λόγος, although the term is often used transliterated but untranslated in theological discourse.

In Christian theology, the incarnation is the belief that the pre-existent divine person of Jesus Christ, God the Son, the second person of the Trinity, who is also the Logos (Koine Greek for 'word'), was "made flesh" by being conceived through the power of the Holy Spirit in the womb of a woman, the Virgin Mary, who is also known as the Theotokos (Greek for "God-bearer" or "Mother of God"). The doctrine of the incarnation then entails that Jesus was at the same time both fully God and fully human.

In the incarnation, as traditionally defined by those Churches that adhere to the Council of Chalcedon, the divine nature of the Son was united but not mixed with human nature in one divine person, Jesus, or according to those adhering to the Council of Ephesus, the divine and human natures of Christ are fully united into one composite nature "without mixing, confusion, or separation". This is central to the traditional faith held by most Christians. Alternative views on the subject (see Ebionites and the Gospel of the Hebrews) have been proposed throughout the centuries, but all were rejected by Nicene Christianity.

Baptism (from Koine Greek: βάπτισμα, romanized: váptisma, lit. 'immersion, dipping in water') is a Christian rite of initiation almost invariably with the use of water. It may be performed by sprinkling or pouring water on the head, or immersing in water (partially or completely), traditionally three times for each person of the Trinity. It is also called christening, although this is typically reserved for the baptism of infants. Baptism is regarded as a sacrament in most churches and an ordinance in others, with the synoptic gospels recounting that John the Baptist baptized Jesus.

Baptism according to the Trinitarian formula, which is done in most mainstream Christian denominations, is seen as being a basis for Christian ecumenism, the concept of unity amongst Christians. In certain Christian denominations, such as the Catholic Churches, Eastern Orthodox Churches, Oriental Orthodox Churches, Assyrian Church of the East, and Lutheran Churches, baptism is the door to church membership, with candidates taking baptismal vows. It has also given its name to the Baptist churches and denominations.

The Holy Spirit, otherwise known as the Holy Ghost, is a concept within the Abrahamic religions. In Judaism, the Holy Spirit is understood as the divine quality or force of God manifesting in the world, particularly in acts of prophecy, creation and guidance. In Nicene Christianity, this conception expanded in meaning to represent the third person of the Trinity, co-equal and co-eternal with God the Father and God the Son. In Islam, the Holy Spirit acts as an agent of divine action or communication. In the Baha’i Faith, the Holy Spirit is seen as the intermediary between God and man and "the outpouring grace of God and the effulgent rays that emanate from His Manifestation".

Sophia (Koine Greek: Σοφíα "Wisdom", Coptic: ⲧⲥⲟⲫⲓⲁ "the Sophia") is a figure, along with Knowledge (γνῶσις gnosis, Coptic: ⲧⲥⲱⲟⲩⲛ tsōwn), among many of the early Christian knowledge theologies grouped by the heresiologist Irenaeus as gnostikoi (γνωστικοί), "knowing". Gnosticism is a 17th-century term expanding the definition of Irenaeus' groups to include other syncretic faiths and the Greco-Roman mysteries.

In Gnosticism, Sophia is a feminine figure, analogous to the human soul but also simultaneously one of the feminine aspects of God. Gnostics held that she was the syzygy, or female twin, of Jesus, i.e. the Bride of Christ, and the Holy Spirit of the Trinity. She is occasionally referred to by the term Achamōth (Ἀχαμώθ, Hebrew: חכמה chokmah) and as Prunikos (Προύνικος). In the Nag Hammadi texts, Sophia is the highest aeon or anthropic emanation of the godhead.

Jehovah's Witnesses is a nontrinitarian, millenarian, and restorationist Christian denomination, stemming from the Bible Student movement founded by Charles Taze Russell in the nineteenth century. Russell co-founded Zion's Watch Tower Tract Society in 1881 to organize and print the movement's publications. A leadership dispute after Russell's death resulted in several groups breaking away, with Joseph Franklin Rutherford retaining control of the Watch Tower Society and its properties. Rutherford made significant organizational and doctrinal changes, including adoption of the name Jehovah's witnesses in 1931 to distinguish the group from other Bible Student groups and symbolize a break with the legacy of Russell's traditions. In 2024, Jehovah's Witnesses reported a peak membership of approximately 9 million worldwide.

Jehovah's Witnesses are known for their evangelism, distributing literature such as The Watchtower and Awake!, and for refusing military service and blood transfusions. They consider the use of God's name vital for proper worship. They reject Trinitarianism, inherent immortality of the soul, and hellfire, which they consider unscriptural doctrines. Jehovah's Witnesses believe that the destruction of the present world system at Armageddon is imminent, and the establishment of God's kingdom over earth is the only solution to all of humanity's problems. They do not observe Christmas, Easter, birthdays, or other holidays and customs they consider to have pagan origins incompatible with Christianity. They prefer to use their own Bible translation, the New World Translation of the Holy Scriptures.