I. The Person of Christ and Historical Heresies
The entire substance and strength of the Christian faith centers entirely on Jesus Christ; without Him, the religion collapses. Maintaining a delicate orthodox balance regarding His person requires rejecting historical heresies:
Ebionites: Denied His divine nature, viewing Him as a mere man.
Gnostics: Denied the full humanity of Jesus.
Arians: Claimed Christ was a created being and did not pre-exist.
Apollinarians: Argued Christ had a human body and soul, but the eternal Son replaced the rational human spirit, denying His complete human nature.
Nestorians: Denied the real union of the divine and human, proposing a dual personality.
Eutychians: Suggested Christ had only one blended nature and will, rendering Him a third, hybrid being.
The orthodox position was crystallized in the Creed of the Council of Chalcedon (451 AD), declaring Jesus Christ perfect in humanity and truly God, possessing a reasonable soul and body, manifested in two indivisible and inseparable natures without confusion or conversion.
II. The Dual Natures: Deity and Humanity
Scripture robustly defends both natures of Christ:
The Deity of Christ: Christ is explicitly given divine names, including "God" (John 1:1; Heb 1:8; Rom 9:5; Titus 2:13) and "Lord," a title reserved for Deity (Acts 4:33; Luke 2:11). When Christ claimed the unique title "Son of God," the High Priest accused Him of blasphemy precisely because it equated Him with God (Math 26:61-63). Furthermore, divine worship is ascribed to Him by men and commanded of angels (John 5:23-24; Heb 1:6). He possesses divine attributes such as pre-existence (John 8:58; Col 1:16,17), immutability (Heb 13:8), omnipotence (Math 28:18), omniscience (John 16:30), and omnipresence (Math 18:20). He fulfills divine offices, including Creator (John 1:3), forgiver of sins (Mk 2:5-10), and Judge of all men (John 5:22).
The Humanity of Christ: Jesus experienced a human birth (Math 1:18-23), possessed a human ancestry through the seed of David (Rom 1:3; Luke 3:23-28), and was given human titles such as the "son of man". He possessed a completely human nature, comprising a human spirit (Lk 23:46), a soul with a mind, will, and emotions (Math 26:38), and a physical body of flesh and bone (1 John 1:1-2). He grew as a child, suffered limitations, and ultimately endured human death.
III. The Work of Christ: Atonement and Resurrection
Christianity is not an ethical system, but a history of redemption centered on Christ's death and bodily resurrection. Christ’s death, mentioned 175 times in the New Testament, is scripturally defined as:
A Ransom: The payment of His own blood to deliver humanity (Math 20:28; 1 Tim 2:6).
A Propitiation: A covering that overlooks the penitent sinner, satisfying divine wrath (Rom 3:25; 1 John 2:2; Heb 2:17).
A Reconciliation: Removing enmity between God and man (Rom 5:10; 2 Cor 5:18-19).
A Substitution: Christ bearing the sins of others and giving His life in their place (Isa 53:6; 1 Pet 2:24).
Theories minimizing His death to a mere accident, martyrdom, or a moral example are unscriptural. The redemptive work culminated in a literal, bodily resurrection, evidenced by the empty tomb, abandoned linen cloths, and physical appearances where He retained His wound points (Math 28:6; John 20:1-2; Rev 1:18)
1V The Trinity The doctrine of the Trinity asserts that God is eternally one indivisible essence (ousia) existing in three distinct, co-equal, and co-eternal persons (hypostaseis)—the Father, the Son, and the Holy Spirit—a distinction that firmly rejects the heresy of Modalism (or Sabellianism). Modalism incorrectly posits that God is a single solitary person who merely projects three sequential "manifestations" or temporary roles (like an actor wearing different masks) for the purposes of creation, redemption, and sanctification. If God were merely manifesting in temporary modes, the objective scriptural accounts of interpersonal communion within the Godhead—such as the Son praying to the Father (John 17), the Father declaring His pleasure in the Son at His baptism (Matthew 3:17), or the Father sending the Son as a distinct agent of salvation (1 John 4:14)—would be reduced to an illusion of divine ventriloquism. Orthodox Trinitarianism maintains that the three persons are distinguished not by divided substance, but by their eternal, immutable relations of origin: the Father is unbegotten, the Son is eternally begotten, and the Spirit eternally proceeds. Because God's essence is inherently and eternally relational, this perichoretic (mutually indwelling) union ensures that the love God demonstrates toward humanity in the economy of salvation is not a temporary guise, but a true and perfect reflection of His eternal, tri-personal nature.
References for The Doctrine of Christ
Primary Source
Historical & Theological References
The Creed of the Council of Chalcedon (451 AD): The definitive orthodox formulation establishing the hypostatic union—Christ as perfectly human and truly divine, co-existing in two indivisible and inseparable natures.
Historical Heresies: Ebionites, Gnostics, Arians, Apollinarians, Nestorians, and Eutychians are referenced as the primary heterodox frameworks that orthodox Christology opposes.
Primary Scriptural References
The Deity of Christ: John 1:1, 3; Hebrews 1:6, 8; John 20:28; Romans 9:5; Titus 2:13; Matthew 26:61-63; Acts 4:33; Luke 2:11; Revelation 1:17; John 5:22-24; Philippians 2:10; John 8:58; Colossians 1:16-17; Hebrews 13:8; Colossians 2:9; Mark 2:5-10; Matthew 18:20; Matthew 28:18; John 16:30.
The Humanity of Christ: Matthew 1:18-23; Romans 1:3; Luke 3:23-28; Luke 23:46; Matthew 26:38; 1 John 1:1-2.
The Work of Christ (Atonement): Matthew 20:28; 1 Timothy 2:6 (Ransom); Romans 3:25; 1 John 2:2; Hebrews 2:17 (Propitiation); Romans 5:10; 2 Corinthians 5:18-19 (Reconciliation); Isaiah 53:6; 1 Peter 2:24 (Substitution).
The Resurrection: Matthew 28:6; John 20:1-2; Revelation 1:18