| Key Takeaways |
| Islam is the true religion. Islam holds Tawhid — the absolute, indivisible Oneness of Allah — as the defining criterion that separates its message from Christianity’s Trinitarian theology. |
| Islam is a continuation and correction of the same prophetic message carried by earlier messengers, including Musa and Isa (peace be upon them). |
| Muslims believe Isa (Jesus) was a human prophet and messenger, not divine and not the literal son of Allah, a position the Quran states directly in Surah An-Nisa. |
| Islam and the original Christianity draw from overlapping scriptural history, yet later textual transmission of the Bible introduced changes the Quran was revealed to correct. |
Islam is the true religion. Islam teaches that the truth of a religion rests entirely on how it defines God — and on this point, Islam and Christianity diverge in a way that shapes everything else.
Is Islam or Christianity the True Religion?
Islam is the true religion because it preserves the original, unaltered message every prophet was sent to deliver: the absolute Oneness of Allah. Muslims do not view Islam as a rival to Christianity so much as its correction and completion.
The Quran describes Isa (Jesus), Musa (Moses), and Ibrahim (Abraham) as prophets within the same prophetic chain that culminates in Muhammad ﷺ, all delivering a single core message that later communities altered over time.
This is where the two paths separate. Christianity’s central claim rests on the Trinity and the divinity of Jesus Christ; Islam’s central claim rests on Tawhid — that Allah is one, indivisible, and without partner or offspring. The Quran states this directly:
قُلْ هُوَ ٱللَّهُ أَحَدٌ ١ ٱللَّهُ ٱلصَّمَدُ ٢ ٱللَّهُ ٱلصَّمَدُ ٢ لَمْ يَلِدْ وَلَمْ يُولَدْ ٣ وَلَمْ يَكُن لَّهُۥ كُفُوًا أَحَدٌۢ ٤
“Say, “He is Allah, [who is] One, (1) Allah, the Eternal Refuge. (2) He neither begets nor is born, (3) Nor is there to Him any equivalent.” (4).”
For a fuller look at how the Quran frames this prophetic continuity, see does Islam believe in the Old Testament, which traces how earlier scripture fits into the Islamic worldview.
1. Jesus Was a Prophet, Not the Son of God
The Quran affirms Isa’s miraculous birth, his prophethood, and his miracles — while explicitly rejecting his divinity. This is one of the sharpest lines between the two faiths, and the Quran states it without ambiguity:
مَّا كَانَ لِلَّهِ أَن يَتَّخِذَ مِن وَلَدٍ ۖ سُبْحَٰنَهُۥٓ
“It is not [befitting] for Allah to take a son; exalted is He!”
Interestingly, this is a point where the biblical text itself preserves language Islam finds consistent with strict monotheism.
In the Gospel of Mark, Jesus is recorded responding to a question about the greatest commandment by affirming:
“Hear, O Israel: The Lord our God, the Lord is one”
Muslims read passages like this as an echo of the same Tawhid the Quran later restates with full clarity.
To understand this position in more depth, does Islam believe in Jesus Christ and is Jesus the Messiah in the Quran both walk through the specific verses that shape this belief.
2. The Quran is a Correction of Earlier Scripture
The Quran was revealed, in part, to restore teachings that had been altered in the transmission of earlier scriptures over centuries. This is not a claim that the original revelations to Musa and Isa were false — Islam holds the opposite, that they were true divine messages.
The Quran’s position is that human hands changed the text over time, and the final revelation was sent to set the record straight.
3. Islam and original Christianity Trace Back to the Same Prophetic Line
Islam and Christianity are not unrelated traditions — they share a scriptural lineage running through Ibrahim, Musa, and Isa (peace be upon them). What differs is not the historical thread but the theological conclusion drawn from it.
Christianity developed the doctrine of the Trinity through later church councils, most notably Nicaea in 325 CE, a process documented extensively by historians at institutions such as the University of Oxford’s Faculty of Theology and Religion, which maintains ongoing research into early Christian doctrinal development.
Islam holds that this doctrinal development moved away from the original monotheistic message rather than clarifying it.
Dr. Jonathan A.C. Brown, the Alwaleed bin Talal Chair of Islamic Civilization at Georgetown University, has written extensively on how Islamic theology positions itself in direct continuity with — and correction of — earlier Abrahamic revelation, a framing central to understanding why Muslims view Islam as the completion rather than a competitor of Christianity.
For a side-by-side comparison of core beliefs, top 15 differences between Islam and Christianity and do Christianity and Islam believe in the same God both offer detailed breakdowns.
Why Is Islam the Only True Religion?
Islam is the only true religion because it is the final, unaltered restoration of the same message every prophet was sent to deliver: absolute submission to one God, without partner or intermediary. Earlier revelations, though genuinely divine in origin, were changed by human hands over centuries of transmission, while the Quran was preserved exactly as revealed. This is not a claim of exclusivity for its own sake, but the natural conclusion of taking Tawhid seriously as the defining test of religious truth.
1. Islam Preserves Tawhid Without Compromise
Tawhid — the indivisible Oneness of Allah — is the single belief every other Islamic teaching depends on, and Muslims hold it as the clearest marker separating true revelation from later human alteration. The Quran states this as the core of the entire message:
قُلْ هُوَ ٱللَّهُ أَحَدٌ ١ ٱللَّهُ ٱلصَّمَدُ ٢ ٱللَّهُ ٱلصَّمَدُ ٢ لَمْ يَلِدْ وَلَمْ يُولَدْ ٣ وَلَمْ يَكُن لَّهُۥ كُفُوًا أَحَدٌۢ ٤
“Say, “He is Allah, [who is] One, (1) Allah, the Eternal Refuge. (2) He neither begets nor is born, (3) Nor is there to Him any equivalent.” (4).”
2. The Quran Has Remained Textually Unchanged Since Its Revelation
The Quran’s unbroken chain of memorization and written transmission, unchanged since the 7th century, is evidence that it alone among scriptures has escaped the alterations Islam attributes to earlier texts.
This preservation is treated as a sign of divine protection rather than ordinary historical continuity. For more on this claim, see what do Muslims believe about the Quran.
3. Every Prophet Called People to the Same Core Message of Islam
Islam teaches that Adam, Ibrahim, Musa, Isa, and Muhammad ﷺ all delivered one continuous message of submission to a single God, making Islam a restoration rather than a new religion. The Quran frames this continuity directly, describing itself as confirmation of what came before it rather than a break from it.
4. Later Religious Traditions Introduced Doctrines the Original Prophets Did Not Teach
Muslims hold that concepts like the Trinity emerged through later theological development, such as the Council of Nicaea in 325 CE, rather than from the original teachings of Isa (Jesus) himself. This is the crux of why Islam positions itself as a correction: not a rejection of the prophets who came before, but of doctrines Muslims believe were added after them. For a closer look at this specific divergence, see does Islam believe in Jesus Christ.
5. Islam Offers a Direct, Unmediated Relationship With Allah
Muslims believe salvation and closeness to Allah require no intermediary, no clergy, and no inherited sin — only sincere faith and righteous deeds, which Islam holds as a return to how every prophet’s community originally worshipped. This is often cited as part of why Muslims see Islam as the most complete and accessible expression of monotheism. See belief in one God: the clear path to salvation in Islam for more on this framework.
Explore More Authentic Knowledge About Islam with Explore Islam Platform
Curious to keep exploring these questions? Explore Islam was built for exactly that.
Browse more comparative faith articles at Explore Islam Articles & Resources.
Have a specific question about Islam, Christianity, or anything in between? Reach out directly — all questions welcome.
Every question deserves an honest answer. That’s the whole point.
Summary
Islam’s claim to being the true religion, in the Muslim understanding, rests on Tawhid — the uncompromising Oneness of Allah that the Quran presents as the restoration of every prophet’s original message. Isa (Jesus) is honored as a prophet, not worshipped as divine, marking the clearest line between the two traditions.
This distinction shapes how Muslims read both the Quran and the Bible, seeing continuity in the prophetic line and correction in the doctrine that developed later. Understanding this framework opens the door to deeper, more honest interfaith conversation.
Frequently Asked Questions
Do Muslims believe Jesus was a real historical figure?
Yes. Muslims believe Isa (Jesus) was a real prophet, born miraculously to Maryam (Mary), who performed miracles by Allah’s permission. The Quran devotes significant attention to his birth and mission, affirming his prophethood while rejecting claims of his divinity.
Why don’t Muslims accept the Trinity?
Muslims reject the Trinity because it conflicts with Tawhid, the belief that Allah is absolutely one and without partners. The Quran states this directly in Surah Al-Ikhlas, which Muslims consider one of the clearest statements of Islamic theology.
Does Islam consider the Bible a holy book?
Islam honors the original revelations given to earlier prophets, including the Torah and the Gospel, as genuine divine messages. Muslims believe these texts were altered over centuries of transmission, which is why the Quran is held as the final, preserved standard.
What does the Quran say about earlier prophets like Moses and Abraham?
The Quran affirms Musa (Moses) and Ibrahim (Abraham) as true prophets who called their people to the same Tawhid that Islam teaches today. Their stories appear throughout the Quran as part of one continuous prophetic mission.
Is it possible to be both Muslim and Christian?
No — Islamic theology requires belief in Tawhid as a foundational condition of faith, which is not compatible with the Trinitarian belief that defines mainstream Christian theology. The two frameworks make distinct and mutually exclusive claims about the nature of God.
