Is the Quran or Bible the Word of God? Christianity or Islam?

Trinitarian Monotheism or Unitarian Monotheism?

Trinitarian Monotheism or Unitarian Monotheism?

Diagram of the Relationship between God the Father, God the Son, and God the Holy Spirit.Monotheism is one of the similarities between Islam and Christianity.  Monotheism is also one of the major differences.  How can this be?

Christianity and Islam are monotheistic, but the difference is that Muslims are Unitarian monotheists. Christians are Trinitarian monotheists.

It is important to understand this distinction when studying God’s revelation of Himself in the Bible.  The real question is not whether the Bible teaches monotheism.  The question is whether the Bible teaches trinitarian or unitarian monotheism.

Without doubt, the Old and New Testaments affirm monotheism (Deuteronomy 6:4; Mark 12:29).

But what kind?  Trinitarian monotheism or unitarian monotheism?

The Bible and Monotheism

Those who believe in Jesus go back to the Scriptures Jesus believed.  If you do this you will learn that New Testament Trinitarianism monotheism has Old Testament roots.  In fact, the very first chapter of the Bible affirms monotheism and yet it is not the kind of monotheism found in the Quran (Genesis 1:1-2; 26-27 with John 1:1-3).1

Other biblical examples of monotheism that are not affirmed in the Quran can be found with:

  • The Angel of the LORD (Genesis 18:1-2; 32:28-30).  These are texts wherein God appears in the form of a man.
  • Statements King David made in the Psalms (Psalm 2; 45:6-7 with Hebrews 1:8-9; 110:1 with Matthew 22:35-46)
  • The Prophet Isaiah (Isaiah 48:16)

These are not full-blown Trinitarian texts, but they certainly are not full-blown Unitarian texts either.  In fact, these and other Old Testament passages agree with the Trinitarian monotheism found in the ministry of Jesus.

Jesus gives the definitive answer to this question (John 10:30):

  • Jesus has an Old Testament name meaning “Yahweh saves” (Matthew 1:21; cf. Jonah 2:9).
  • Jesus also has the Name “Immanuel” meaning God with us (Matthew 1:23).
  • Jesus forgave sins; something only God can do (Mark 2:1-13).
  • Jesus said, “Before Abraham was, I am…” (John 8:58-59 with Exodus 3:14-15).
  • Jesus affirmed the unity of God when He taught, “I and the Father are one” (John 10:30).
  • Jesus accepted worship from others  (Matt. 8:2; 14:33; 15:25; 20:20; 28:17; Mark 5:6).
  • The Jewish Sanhedrin finally condemned Jesus to death for blasphemy (Matthew 26:63-66).
  • The Good News of the Gospel is that Jesus was vindicated when He rose again from the dead (1 Corinthians 15:1-4).

Jesus is the reason Christians are Trinitarian monotheists (cf. Hebrews 1:1-3).

Trinitarian Monotheism is a Reason the Quran is not the Word of God

Is the Quran the Word of God?  The simple answer is, no.  The Quran cannot be the Word of God because the Quran denies the One God of the Bible.  The Quran does not affirm Trinitarian monotheism (cf. Quran 4:171; 5:73).2  Unitarian monotheism is foreign to both Old and New Testament revelation.

If you believe in Jesus, then you should be a Trinitarian monotheist who confesses Jesus as Lord and Savior (John 20:27-28).  Believe in Jesus and be baptized in the Triune Name of God (Matthew 28:18-19).

Related Posts

Trinity, Tawheed, and Monotheism

Do Muslims Believe in Jesus?


  1. It is important to understand that God gradually revealed Himself over time,

    Before the coming of NT redemption, human beings knew God less fully.  This deficiency is not an incidental fact arising merely from some mental or moral deficiency in the individual or the society.  It is an inevitable consequence of the very structure of history and the structure of redemption.  Human knowledge of God can grow only in step with the redemptive operations that work out God’s plan.  Consequently, God’s Trinitarian character is only dimly revealed and dimly understood in the OT. Trinitarian theology in its full form rests on NT revelation (Vern Sheridan Poythress, “Reforming Ontology and Logic in the Light of the Trinity: An Application of Van Til’s Idea of Analogy”; Westminster Theological Journal Volume 57:214). []

  2. Some have suggested that the Qurʾān refutes heretical Christian beliefs (e.g. tritheism, adoptionism, the physical generation of the Son) rather than the orthodox doctrines of the Trinity, Incarnation, etc. In practice, however, the vast majority of Muslim commentators have assumed that the Qurʾān does refute the Trinity, the Incarnation, and the Christian doctrine of divine sonship, especially as these are understood to contradict the central Islamic tenet of the oneness of God” (Kate Zebiri, “Polemic and Polemical Language”; Encyclopaedia of the Qurʾān. General Editor: Jane Dammen McAuliffe . Brill [Leiden and Boston], 2005. CD-ROM version). []

2 Responses to “Trinitarian Monotheism or Unitarian Monotheism?”

  1. Berry says:

    How can monotheism be qualified?
    The moment you add an adjective to “monotheism”, it seems that it can’t truly be monotheistic anymore.

    I instinctively guessed your site was Christian despite your title.

  2. ALVIN KRIEGER says:

    To begin with to know the truth of who the Father is and who Jesus is – is a revelation. Since Jesus has all authority the revelation will come through Jesus if he wills. Matt.11:27. The scritures you are using to defend the trinity idea is error when you look at the full text. Example Jesus said I and the Father are one. In John17.21 Jesus prayed we would be one as he’s one with the Father. The one therefore means a unity. Yes Jesus forgave the man his sins. As we read further ( Mark 2:10) Jesus said, in order you to know that the son of man has authority on the earth to forgive sins. Jesus said “i am” means in the greek i have been where in exodus the “i am” means i will be. Therefore not looking at the full text you can arrive at different meaning of what is actually being said.Jesus didn’t want his disciples to tell anyone he’s the Christ. Matt.16:20 He also didn’t want the demons to tell anyone, Mark3:11 But you’re believing he’s telling everyone he’s the “I AM” plainly. If that was true why would the Jews be still wondering if Jesus is the Christ in John 10:24. Jesus tell’s plainly he’s the “I AM” but won’t say plainly he’s the Christ. That doesn’t make any sense. If Jesus truly claimed he’s the “I AM” meaning God the Almighty they would of killed him right there. The reason why they killed him is because he called God his Father. John 5:17-18 He said the same in John 8:54. He called his God and their God “MY FATHER”. In John 19:7 the jewish leaders said, “he ought to die because he made himself out to be the son of God.” That’s the blasphemy. Matt.26:63-65 Jesus said eternal life is to know the Father, the only true God, and Jesus whom he sent. John17:3. Your belief is what the church fathers came up with in the fourth century. That’s not what the apostles preached or taught in the book of Acts or any where else. I’m a jewish believer for 45 years. Some of those years i believed what your believe. But thanks be to God through Christ by the Holy Spirit he reals the truth. Not our word but his.

What is your opinion?

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