The Nature of Jesus (Divine and Human)
The Word became flesh, and lived among us. We saw his glory, such glory as of the one and only Son of the Father, full of grace and truth.John 1:14 · World English Bible
Original Language & Text
Two Greek words matter a lot here: 'nature' (physis) and 'person' (hypostasis). A church council at Chalcedon used these words to say Jesus is one person with two natures, fully God and fully human. Another Greek word, 'kenosis,' meaning 'emptying,' comes from Philippians 2:7, where it says Christ 'emptied himself.' People debate whether this means Jesus gave up some of his divine powers for a time. In John 1:14, the phrase 'the Word became flesh' uses blunt, physical language to stress that Jesus was truly, fully human. Mary was given the title 'Theotokos,' meaning 'God-bearer,' at a council in the city of Ephesus in 431 CE. A church leader named Nestorius objected and preferred calling her 'Christ-bearer' instead, wanting to keep Jesus's human and divine sides more clearly separate. The Hebrew word 'mashiach,' meaning 'anointed one' (the root of the word 'messiah'), originally described a king or political leader, a meaning distinct from the later Christian claim that this figure is God become human.
Key Terms in the Original Language
“to empty” (Phil. 2:7, Christ “emptied himself”)
The noun form of this verb gives “kenosis,” a whole school of thought about what, if anything, the divine Son set aside in becoming human — debated since the text itself doesn't specify what was emptied.
“only, unique, one of a kind” (John 1:14, 3:16)
Older translations render this “only begotten,” tying it to the Nicene Creed's language; most modern scholars argue the word is about uniqueness, not a begetting process, which shifts — without necessarily resolving — later Trinitarian debates about the Son's origin.
History & Authorship
Early Christians argued over how Jesus could be both fully God and fully human. In the 100s CE, a view called Docetism said Jesus only seemed human but wasn't really. Other groups, the Ebionites and Adoptionists, said Jesus wasn't fully God, and that he became God's son only at his baptism. In the 300s, a teacher named Arius taught that Jesus was a created being, ranked below God the Father; this view was rejected at the Council of Nicaea in 325. A view that said Jesus had no truly human mind was rejected at a council in Constantinople in 381. A view that separated Jesus's human and divine sides too sharply was rejected at a council in Ephesus in 431. And a view that blended Jesus's two natures into one was rejected at a council in Chalcedon in 451. That council instead defined Jesus as one person with two complete natures, joined 'without mixing them together, changing them, dividing them, or separating them.' Even so, some churches never accepted this Chalcedon decision. The Assyrian Church of the East and several Oriental Orthodox churches (Coptic, Armenian, and Syriac) kept their own different views on Jesus's nature, and their traditions still exist today, showing that full agreement was never actually reached.
How This Debate Developed
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325 / 381
Nicaea & Constantinople
Establish the Son's full divinity, setting up the harder question of how divine and human unite in one person.
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431
Council of Ephesus
Condemns Nestorius and affirms Mary as “Theotokos” (God-bearer), rejecting a reading that divides Christ into two separate persons.
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451
Council of Chalcedon
Defines Christ as one person in two natures, divine and human, “without confusion, without change, without division, without separation.”
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451 onward
Oriental Orthodox split
The Coptic, Armenian, Syriac, and other churches reject Chalcedon's two-nature language, holding a miaphysite Christology instead — a division that continues today.
The Popular / Mainstream View
Most Christians today, Catholic, Eastern Orthodox, and the large majority of Protestants, hold the view settled at Chalcedon: Jesus Christ is one person who has two complete natures, fully God and fully human, joined together without being mixed up or divided. This idea, sometimes called the 'joining of two natures in one person,' is treated as essential, core Christian belief, backing up teachings about how Jesus saves people and rose from the dead. Jesus is understood as without sin, and as truly experiencing human limits like hunger, tiredness, and emotion, while still fully holding on to his divine identity and authority. This shared belief holds together groups that disagree sharply on many other questions.
Minority & Alternative Views
Church of the East ("Nestorian") Christology
The historic Assyrian Church of the East teaches a stronger separation between Jesus's divine side and human side than the Chalcedon council's wording allows. They worried that using one word for 'person' risked blurring the two natures together. This church has long been labeled 'Nestorian' by its critics, but its members argue this label is unfair, and that their view actually protects both natures properly rather than denying that Jesus is one being.
Oriental Orthodox Miaphysitism
Oriental Orthodox churches (Coptic, Armenian, Syriac, and Ethiopian) do not accept the Chalcedon council's decision. Instead, they teach that Jesus has one single, united nature that is fully divine and fully human at the same time, rather than two separate natures in one person. They stress this is different from an earlier rejected view that blended the two natures into something less than fully human and fully divine; in their teaching, the single united nature keeps both sides complete.
Nontrinitarian/Adoptionist Christologies
Groups such as Jehovah's Witnesses, some Unitarians, and historic groups like the Ebionites and Socinians hold that Jesus was not eternally God in the full sense the Nicaea council taught. Instead, they see him as a uniquely honored being who is either less than God, or was made God's Son at some point, rather than fully equal to God. They argue this view fits better with strict Jewish belief in one God, and with certain Bible verses, such as John 14:28, where Jesus says 'the Father is greater than I.'
What Scholars Say
Scholars who study history separate 'the Jesus of history,' the actual Galilean teacher, from 'the Christ of faith,' the figure worshipped by the church, and they debate how quickly ordinary people began treating Jesus as divine. Scholars like James Dunn and Larry Hurtado argue that a high view of Jesus as divine rose very early, within the first few decades. Others think this view grew more slowly, reaching its final form only at the councils of Nicaea and Chalcedon. Theologians within the church tend to see the Chalcedon definition as accurately spelling out what the Bible already teaches. Historians without a faith commitment tend to see it as a later theological solution built to resolve real tensions between different New Testament writings, which do not all describe Jesus in exactly the same way.
What the Confessions Say
Ecumenical (pre-denominational)
“One and the same Christ... recognized in two natures, without confusion, without change, without division, without separation.”
Chalcedonian Definition (451)
Catholic
“The unique and altogether singular event of the Incarnation... does not mean that Jesus Christ is part God and part man... he became truly man while remaining truly God.”
Catechism of the Catholic Church, §464
Lutheran
“The Son of God did assume the human nature... so that there are two natures, the divine and the human, inseparably enjoined in one Person.”
Augsburg Confession (1530), Article III
Sources & Further Reading
- Chalcedonian Definition (451 CE)
- Council of Ephesus (431 CE)
- Larry Hurtado, Lord Jesus Christ
- James D. G. Dunn, Christology in the Making
- Sebastian Brock, "The 'Nestorian' Church: A Lamentable Misnomer" (1996)
- V.C. Samuel, "The Council of Chalcedon Re-Examined" (1977)
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- What is at stake theologically in Nestorius's distinction between the divine and human natures of Christ, and why did the Church of the East resist the label "Nestorian" for its own position?
- Compare miaphysite ("one united nature") Christology with Chalcedonian "two natures, one person" Christology. Is the difference substantive, or, as some modern ecumenical dialogues argue, largely terminological?
- How do adoptionist readings of texts like Mark 1:11 or Romans 1:4 differ from the classical view that Christ was eternally divine, and what verses would a Chalcedonian Christian point to in response?
- Why did questions about Christ's nature provoke centuries of empire-splitting controversy rather than being treated as a secondary doctrinal detail?
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