Groups that don’t accept the Trinity

A range of groups, both ancient and modern, reject the doctrine of the Trinity (i.e., that God is one Being in three co-equal, co-eternal Persons: Father, Son, and Holy Spirit).

Here’s a breakdown by category:


🏛️ Historically Non-Trinitarian Groups

These appeared in the early centuries of Christianity and were considered heretical by the orthodox church:

Group Period Core Belief
Arians 4th century Believed Jesus was the first created being of God, not equal or co-eternal with Him.
Modalists (Sabellians) 3rd century Believed Father, Son, and Spirit are modes or roles of one God, not distinct persons.
Ebionites 1st–2nd century Jewish Christians who saw Jesus as a human prophet, not divine.
Adoptionists 2nd century onward Believed Jesus was a man “adopted” by God at baptism or resurrection.

🙏 Modern Non-Trinitarian Denominations

These groups exist today and explicitly reject Trinitarian theology:

Group Core Belief Summary
Jehovah’s Witnesses Believe Jehovah (the Father) alone is Almighty God. Jesus is His first creation (the archangel Michael), and the Holy Spirit is God’s impersonal active force.
Christadelphians Believe Jesus is the Son of God but not preexistent or coequal with God; the Holy Spirit is God’s power, not a person.
Unitarian Universalists Believe in the unity of God (one person only); Jesus was a moral teacher, not divine.
Oneness Pentecostals (e.g. United Pentecostal Church International) Believe Jesus is the one God who manifests Himself as Father, Son, and Spirit — not three persons.
Iglesia ni Cristo (Philippines) Teach that Jesus is a man empowered by God, not divine; deny personal existence of the Holy Spirit.
The Church of God (Abrahamic Faith) Non-Trinitarian; similar to Christadelphians in Christology.
The Way International Teaches that Jesus is the Son of God but not God Himself.
Biblestudents / Dawn Bible Students Offshoots of early Watchtower movement; reject the Trinity, affirming the Father as supreme and Jesus as His created Son.
Latter-day Saints (Mormons) Believe the Father, Son, and Holy Ghost are three separate divine beings united in purpose, not one substance.

⚖️ Summary View

View Jesus Holy Spirit God’s Nature
Trinitarian (mainstream Christianity) Fully God, coeternal with the Father Fully God, coequal One essence, three persons
Arian / JW / Christadelphian Created divine being / exalted man Power or force of God One person, the Father
Modalist / Oneness Pentecostal God Himself in human form Another manifestation of God One person who appears in different modes
Unitarian / Socinian Human teacher, not divine Power or influence One person, the Father



Next is a detailed overview of the main biblical arguments used by non-Trinitarian groups (e.g., Jehovah’s Witnesses, Unitarians, Christadelphians, Oneness Pentecostals, etc.) and the corresponding Trinitarian responses.

We’ll organize it by key doctrinal points:

1. Is Jesus God?

🔹 Non-Trinitarian Arguments

Passage Claim Explanation
John 14:28 – “The Father is greater than I.” Jesus is subordinate to the Father. They interpret this to mean Jesus cannot be equal with God if He calls the Father “greater.”
Mark 13:32 – “No one knows the day or hour… not even the Son.” Jesus lacks divine omniscience. Therefore, He cannot be fully God.
John 17:3 – “The only true God” refers to the Father. Jesus distinguishes Himself from the “only true God.” Used to show that Jesus and the Father are separate beings.
Colossians 1:15 – “the firstborn of all creation.” “Firstborn” = first created. Jesus was the first creature made by God.
John 20:17 – “I ascend to my Father and your Father, to my God and your God.” Jesus acknowledges the Father as His God. Therefore, Jesus worships God and cannot be God Himself.

🔹 Trinitarian Responses

Response Explanation
“Greater” refers to position, not nature. In John 14:28, Jesus speaks as the incarnate Son in submission to the Father, not as denying equality of divine nature.
Temporary human limitations. In Mark 13:32, the Son voluntarily limits His knowledge in His humanity (Phil. 2:6–8).
John 17:3 is relational, not ontological. Jesus calls the Father the “only true God” in distinction to idols, yet elsewhere John affirms Jesus as God (John 1:1; 20:28; 1 John 5:20).
“Firstborn” = preeminent heir. In biblical usage (Psa 89:27; Exo 4:22), “firstborn” means rank or status, not time of creation.
“My God” expresses His humanity. After the incarnation, Jesus can call the Father “God” because He took on true human nature (Heb. 2:14).


2️. Is the Holy Spirit a Person or a Force?

🔹 Non-Trinitarian Arguments

Passage Claim Explanation
Acts 2:2–4 Holy Spirit described as “wind” and “fire.” Symbolic language implies an impersonal power.
Psalm 51:11 – “Take not your Holy Spirit from me.” Spirit is something possessed or transferred. Suggests a divine power rather than a distinct person.
Luke 1:35 – “The power of the Most High will overshadow you.” Identifies Spirit with God’s power. Not another person distinct from God.

🔹 Trinitarian Responses

Response Explanation
Personhood shown by actions. The Spirit speaks (Acts 13:2), teaches (John 14:26), wills (1 Cor. 12:11), and can be grieved (Eph. 4:30). These imply personhood.
Distinction in speech. In John 14–16, Jesus says the Spirit “will come” and “will testify” — clearly distinguishing Him from Father and Son.
“Power” imagery doesn’t exclude personality. Metaphors (wind, fire, oil) describe the Spirit’s activity, not His essence.


3️. How Can God Be “One”?

🔹 Non-Trinitarian Arguments

Passage Claim Explanation
Deuteronomy 6:4 – “The LORD is one.” God is one single person. This is the foundation for rejecting any multiplicity in God.
Isaiah 44:6 – “There is no God besides me.” God cannot be three if He says He alone is God. Used to exclude any co-equal “persons.”

🔹 Trinitarian Responses

Response Explanation
Hebrew echad (“one”) can mean a compound unity. Same word used in “one flesh” (Gen. 2:24) or “one cluster of grapes.” Thus, oneness doesn’t mean absolute singularity.
Scripture shows plurality within the one God. Examples: Gen 1:26 (“Let us make man”), Gen 19:24 (YHWH rains fire from YHWH in heaven), Ps 110:1 (“The LORD said to my Lord”), Isa 48:16 (“The Lord GOD … and His Spirit have sent Me”).
NT expands the Shema. 1 Cor 8:6 applies “Lord” to Jesus and “God” to the Father, showing unity within distinction.

4. Key Texts Supporting the Trinity

Passage Trinitarian Teaching
Matthew 28:19 – “In the name (singular) of the Father, Son, and Holy Spirit.” Three named persons share one divine “name.”
John 1:1 – “The Word was God.” The Son shares the divine nature while distinct from “the God” (the Father).
John 10:30 – “I and the Father are one.” Oneness of essence, not merely agreement.
2 Corinthians 13:14 – “The grace of the Lord Jesus Christ, the love of God, and the fellowship of the Holy Spirit…” Early Trinitarian blessing formula.
Philippians 2:6–11 “existed in the form of God… every knee shall bow and every tongue confess…” Jesus exists “in the form of God,” yet humbles Himself and is later exalted to divine glory.

🧭 Summary Table

Issue Non-Trinitarian View Trinitarian Response
Jesus’ Deity Denied; Jesus is created or only human. Affirmed; same divine nature as the Father.
Holy Spirit’s Nature Impersonal power. Distinct divine Person.
God’s Oneness One person only. One divine essence, three co-eternal Persons.
Scripture Support Focus on verses showing Jesus’ humanity/submission. Emphasizes texts showing His divine identity and unity with the Father.