Theandric describes the uniquely composite activity of Jesus Christ in which his divine and human natures act in perfect, inseparable concert — the one Person who is both fully God and fully man acting as one. When Jesus healed the blind man, was it a divine act or a human act? It was theandric — done through a human hand by the divine Son. When Jesus was tired (John 4:6), was that divine or human? Theandric — real human exhaustion in the divine Person. The theological precision matters: Monothelitism (condemned at the Third Council of Constantinople, 681 AD) taught that Christ had only one will. Orthodox Christianity holds that Christ has two wills — divine and human — but they operate in perfect harmony, never in opposition. The theandric acts of Christ are thus not a blending of the natures (Eutychianism) but an integrated operation of two complete natures in one Person (Chalcedonian Definition).
THEAN'DRIC, a. [Gr. θεάνδρικος; θεός, God, and ἀνήρ, man.] Partaking of both the divine and human nature; performed by or relating to the God-man, Jesus Christ. Applied to the acts of Christ, theandric signifies those operations in which his divine and human natures both concur, so that the action is at once truly human and truly divine — as when he healed by the touch of his hand, suffered real pain, yet remained Lord over nature and death. The term is essential to Chalcedonian Christology and distinguishes orthodox Christianity from Nestorian (two persons) and Eutychian (one blended nature) heresies.
• John 1:14 — "The Word became flesh and dwelt among us." (The eternal God took on humanity — theandric existence begins.)
• John 4:6 — "Jesus, wearied as he was from his journey, was sitting beside the well." (Human exhaustion — divine Person.)
• John 11:35–43 — Jesus wept (human emotion), then raised Lazarus (divine power) — theandric in sequence and unity.
• Colossians 2:9 — "In him the whole fullness of deity dwells bodily." (Both natures simultaneously, bodily.)
• Hebrews 4:15 — "One who in every respect has been tempted as we are, yet without sin." (Genuinely human temptation — without divine compromise.)
Greek: θεάνδρος (theandros) — God-man; combined form of theos (God) + andros (man, human). Not found in NT but deployed in patristic Christological debates.
G2316 — theos (θεός): God. The divine component of theandric.
G435 — anēr (ἀνήρ): man, male, person. The human component. Contrasted with gunē (woman) but also used generically for human beings.
Key Christological councils: Nicaea (325) — Christ is fully divine. Chalcedon (451) — two natures, one person, without confusion, change, division, or separation. Constantinople III (681) — two wills operating in harmony.
Modern Christological errors still collapse the Chalcedonian balance in predictable ways. Liberal theology emphasizes only Christ's humanity — Jesus the teacher, the social revolutionary, the moral exemplar — stripping away the divine nature so that his miracles become myth, his resurrection becomes metaphor, and his theandric acts become merely heroic ones. Conservative evangelicalism sometimes errs in the opposite direction: Christ is so divine in popular imagination that his humanity becomes a costume — he walked around omnisciently, never really struggled, never genuinely didn't know things (despite Mark 13:32). Both distort the theandric mystery. The Chalcedonian "without confusion, without change, without division, without separation" remains the four walls that protect the miracle: Jesus Christ is not God pretending to be human, nor a human elevated to divinity, nor a blend of both — but the eternal Son, fully divine and fully human, in one undivided, unconfused Person forever.
Greek compounds:
θεός (theos) → PIE *dhes- (divine, sacred)
Related: theology, theophany, atheism, enthusiasm (en-theos)
ἀνήρ/ἀνδρός (anēr/andros) → PIE *hner- (man, vital force)
Related: android, polyandry, misandry, anthropos (human being)
Theandric vs. related terms:
Theanthropos — God-man (same concept, Greek: anthropos = human)
Hypostatic union — the technical doctrine theandric describes
Communicatio idiomatum — properties of each nature attributed
to the one Person (the Word "suffered"; the Son "was born")
Chalcedonian four negatives (451 AD):
ἀσυγχύτως — without confusion (natures don't merge)
ἀτρέπτως — without change (natures don't transform)
ἀδιαιρέτως — without division (Person is one)
ἀχωρίστως — without separation (natures inseparable)