Trinity, Tawhid, and Monotheism
Tawhid (توحيد ) and Trinity (الثالوث), and Monotheistic Belief in One God
If you’re anything like me you’ve struggled to understand Christian and Muslim differences about God. The doctrine of God is hard enough to grasp by itself let alone fathoming the differences between Christians and Muslims.
Maybe you’ve heard that Christians believe 1+1+1=1? Perhaps you aren’t sure about the meaning of tawhid, Shahada or shirk. Or maybe you’re so puzzled that you’ve given up trying to understand the differences and have concluded, “Christians and Muslims worship the same God” or “Allah knows best.”
If you’ve wrestled to understand the differences and why they matter, then read on. They matter eternally!
Christians and Muslims are Monotheists.
At the core of Islam and Christianity is belief in One God. Christians and Muslims are monotheists.
There is no god but Allah, and Muhammad is the messenger of Allah.
لا اله الا الله محمد رسول الله (lâ ilâha illallâh, Muḥammadur rasûlullâh) (Shahada in Arabic)
Monotheism is explicitly mentioned more than 260 times in the Muhsin Khan Interpretation of the Meanings of the Quran (For a list of every reference see, “Monotheism in the Quran”).
4Hear, O Israel: The Lord our God, the Lord is one (Deuteronomy 6:4).
Jesus affirmed monotheism as part of the first and greatest commandment:
28One of the teachers of the law came and heard them debating. Noticing that Jesus had given them a good answer, he asked him, “Of all the commandments, which is the most important?” 29“The most important one,” answered Jesus, “is this: ‘Hear, O Israel, the Lord our God, the Lord is one. 30Love the Lord your God with all your heart and with all your soul and with all your mind and with all your strength.’ (Mark 12:28–30)
Tawhid and Trinity
So if Christians and Muslims are monotheists, what’s the difference? The difference is:
- Christian monotheism is Trinitarian.
- Muslim monotheism is Unitarian or Tawhid.
Many Muslims do not believe that Trinitarianism is monotheistic but shirk, the unpardonable sin of assigning partners or equals to God (Quran 5:17). The Quran contains strong warnings against shirk. 0
Curiously, the Quran’s formal rejection of “Trinity” is not the Trinitarian monotheism historically believed by Christians.1
The Quran’s rejection of “Trinity” and affirmation of Unitarian monotheism is problematic because Unitarian monotheism is foreign to the Christian Scriptures, both Old and New Testaments (see Do You Believe in the One True God?).
How Can We Decide Between Trinitarian Monotheism and Unitarian Monotheism (Tawhid)?
Philosophical arguments could be used for or against either position.2
But Christians are Trinitarian monotheists because of God’s work in history. 3
God is not a speculation that originated in our imagination.
Historically, the life, teaching, death, and resurrection of Jesus are why Christians are Trinitarian monotheists. In fact, two of the most important rites Jesus handed down to the church highlight both history and Trinitarian monotheism: (1) The Lord’s Supper highlights God’s work in history culminating in Jesus (Luke 22:14–20; see also 1 Corinthians 11:23-26),4 and (2) baptism highlights Jesus’ having fully revealed monotheism as Trinitarian (Matthew 28:18-20). 5
Jesus and Muhammad in History
So we are left with this question: Who has the authority to define monotheism: Jesus or Muhammad?
I believe Jesus has the final authority to define monotheism for the following historical reasons:
- The Unitarian monotheism in the Quran, along with its denial of the Fatherhood of God is not taught in Scripture.
- Muhammad’s claim that the angel Gabriel spoke to him is historically questionable.
- Muhammad’s revelation contradicted previous revelation that is rooted in history (e.g. Jesus’ death on the cross 6
- Historically, Muhammad is dead and buried in Medina. Jesus’ tomb is empty; He lives. This gives Jesus an authority greater than Muhammad to define monotheism.
Why should Muslims believe in the form of monotheism Jesus taught and handed down to the church?
Because Muslims claim to believe in Jesus. Therefore, they should believe what Jesus taught about God and God’s work in history:
- Jesus is “Immanuel,” which means God with us (Matthew 1:23).
- Jesus forgave sin; something only God can do (Mark 2:1-13).
- Jesus taught, “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 (Matthew. 8:2; 14:33; 15:25; 20:20; 28:17; Mark 5:6).
- Jesus commanded all who believe in Him to remember God and His work in the observance of the Lord’s Supper and baptism.
Christian monotheistic belief is summarized by the following seven points:
1. The Father is God.
2.The Son is God.
3.The Holy Spirit is God.
4.The Father is not the Son.
5.The Son is not the Holy Spirit.
6.The Holy Spirit is not the Father.
7.There is only one God.
When Christians say: (1) The Father is God; (2) The Son is God; and (3) The Holy Spirit is God we are identifying Who God is.
When we say: (4) The Father is not the Son; (5) The Son is not the Holy Spirit; and (6) The Holy Spirit is not the Father we are distinguishing the Father, Son, and Holy Spirit.
The seventh and the final statement is the most challenging, “There is only one God”. The Greeks would say, “Zeus is god, “Apollos is god, and Dionysius is god” and there are three gods. Christianity says, the Father is God, the Son is God, and the Holy Spirit is God and there is only one God.
To help clarify the above seven points, please consider the following diagram:
Now, the question boils down to this: Is this what the Bible teaches? Since the Bible teaches this but we can’t fully comprehend it – that is OK. We must leave room for mystery in our theology.
In church history Saint Augustine (354-430) probably thought more about the doctrine of the Trinity than any other uninspired writer, with the possible exception of John Calvin. There is a story about Augustine walking upon the ocean’s shore, greatly perplexed about the doctrine of the Trinity. As he meditated, he observed a little boy with a sea shell, running to the water, filling his shell, and then pouring it into a hole which he had made in the sand.
“What are you doing, my little man?” asked Augustine.
“Oh,” replied the boy, “I am trying to put the ocean in this hole.”
Augustine had learned his lesson, and as he passed on, exclaimed, “That is what I am trying to do; I see it now. Standing on the shores of time I am trying to get into this little finite mind things which are infinite.” 7
It should come as no surprise that the Christian belief in the Triune God involves mysteries that transcend the human mind.
Bassam Madany, a former Arabic broadcast minister, tells of a time when he received a letter from a Muslim merchant residing in London, England. After commenting, in an irenical spirit, on Bassam’s use of the Arabic language, this Muslim wondered how an intelligent person could believe in the Trinity. Bassam responded:
I am not surprised that you have a great difficulty in understanding this biblical teaching about the Trinity. The reason I believe in the triune God is the fact it is part and parcel of God’s revelation. I trust that you will agree with me that when we deal with such doctrines as the attributes of God, and his nature, we cannot fully comprehend them. As believers in God, we are summoned to receive what his revelation teaches. So, we should not be surprised if in a revealed (Muslims consider Judaism, Christianity, and Islam as heavenly [or revealed] religions) religion, there are mysteries that transcend the human mind.
There were some Muslim theologians who were supported in their views by the ruling caliphs, who propounded the doctrine that the Qur’an was created; that it came into existence at the time of its revelation to Muhammad, (between A.D. 610-632) They believed that it was necessary to safeguard the unity of Allah, by not allowing for the pre-existence of the Qur’an. However, an influential theologian and expert in the Law, Imam Hanbal, refused to accept this formulation and declared that the Qur’an was eternal. He was persecuted and imprisoned by the caliph. As you well know, that event in your history is known as “The Ordeal of the Qur’an.” Several years later, it was the Hanbalite view that prevailed. To this day, it continues to be the official teaching of Sunni Islam.
Muslims believe that Allah is eternal, but they confess that the Qur’an is also eternal. While I do know that this is your own belief, I do not jump to the conclusion that you confess the existence of two gods. I realize that there are mysteries in all faiths that do transcend our capacity to comprehend. Should you not treat me in the same way, and not charge me with believing in three gods? (“The Trinity and Christian Missions to Muslims” in Reformation and Revival; [Summer 2001], pp.129-130) 8
Can the Quran be the Word of God if it denies Trinitarian monotheism?
Is the Quran the Word of the One True God?
The Christian answer must be an emphatic, “No!” The Quran cannot be the Word of the One True God because the Quran does not affirm the One True God revealed in the Bible,
O people of the Scripture (Jews and Christians)! Do not exceed the limits in your religion, nor say of Allah aught but the truth. The Messiah ‘Iesa (Jesus), son of Maryam (Mary), was (no more than) a Messenger of Allah and His Word, (“Be!” – and he was) which He bestowed on Maryam (Mary) and a spirit (Ruh) created by Him; so believe in Allah and His Messengers. Say not: “Three (trinity)!” Cease! (it is) better for you. For Allah is (the only) One Ilah (God), Glory be to Him (Far Exalted is He) above having a son. To Him belongs all that is in the heavens and all that is in the earth. And Allah is All-Sufficient as a Disposer of affairs. (Quran 4:171, Muhsin Khan).
Surely, disbelievers are those who said: “Allah is the third of the three (in a Trinity).” But there is no ilah (god) (none who has the right to be worshipped) but One Ilah (God -Allah). And if they cease not from what they say, verily, a painful torment will befall the disbelievers among them. (Quran 5:73, Muhsin Khan).