Atonement is a central doctrine in Christian theology that refers to the reconciling work of Jesus Christ, through which the relationship between God and humanity, broken by sin, is restored. The concept of atonement encompasses various aspects of Christ's life,...

The Athanasian Creed, also known as Quicunque vult (from its opening words in Latin), is one of the three ecumenical creeds of the Christian Church, alongside the Apostles' Creed and the Nicene Creed. Though traditionally attributed to Athanasius of Alexandria, a key...

Assurance in the Christian worldview refers to the confident belief that one is saved and will spend eternity with God. This assurance is rooted in the promises of Scripture, the work of Christ, and the witness of the Holy Spirit. The doctrine of assurance is closely...

Aseity refers to the attribute of God that denotes His self-existence, independence, and self-sufficiency. The term "aseity" comes from the Latin words a se, meaning "from oneself." In Christian theology, aseity signifies that God exists in and of Himself, requiring...

Asceticism refers to a lifestyle characterized by abstinence from various forms of physical pleasure and often involves practices of self-discipline, austerity, and renunciation. In Christianity, asceticism is pursued as a means of spiritual growth, drawing closer to...

The Ascension refers to the event in which Jesus Christ physically rose to heaven after His resurrection, marking the conclusion of His earthly ministry and His exaltation at the right hand of God the Father. The Ascension is a pivotal event in Christian theology as...

Arminianism is a theological framework within Protestant Christianity that emphasizes free will, conditional election, and universal atonement. Named after its founder, Jacobus Arminius (1560-1609), a Dutch theologian, Arminianism arose as a response to the Reformed...

An archangel is a high-ranking angel in Christian angelology, often depicted as a leader among angels and a messenger of God’s important directives. Archangels hold a prominent position in the hierarchy of angels, and their roles are often associated with significant...

Apostolic Succession is the doctrine of the uninterrupted transmission of spiritual authority from the Apostles through successive popes and bishops. This concept is central to the ecclesiology of several Christian denominations, particularly the Roman Catholic,...

The Apostolic Fathers are early Christian writers who are believed to have had personal connections to the Apostles or were significantly influenced by their teachings. Their writings provide valuable insights into the beliefs, practices, and organizational structure...

Apostasy refers to the act of renouncing or abandoning one’s faith. In Christianity, it is considered a serious transgression, as it involves a deliberate departure from the beliefs and practices that one previously held. Apostasy can occur for various reasons,...

Apophatic theology, also known as negative theology, is a theological approach that seeks to describe God by negation. Rather than making positive assertions about what God is, apophatic theology emphasizes what God is not. This approach recognizes the limitations of...