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Examining Islam's Case for Truthfulness

Bismillah

Throughout history, humans have proposed various religions and creeds in an effort to understand existence, purpose, and morality. Yet their fundamental differences make it impossible for all of them to be equally correct. This raises a serious and unavoidable question: if truth is singular, which belief system reflects it? Islam claims to provide a coherent and universal framework for understanding God, morality, and human purpose. This article argues that this claim not only withstands scrutiny, but emerges as the most coherent explanation of truth.

The Necessity of a Creator

Everything that begins to exist has a cause. This is a basic principle of reason behind both science and everyday experience. The universe began to exist, as modern cosmology indicates through the beginning of space, time, and matter. Since the universe began, it cannot be the cause of itself. Its cause must therefore exist outside the universe. Because matter, energy, space, and time all began with the universe, this cause cannot be material, physical, or bound by time. It must also be independent, since all limitation and dependence exist only within the universe.

Everything within the universe exists in a state of dependence. Every object depends on prior causes, conditions, or components. If every dependent thing were explained only by another dependent thing, there would be no ultimate explanation for why anything exists at all. An infinite chain of dependent things no more explains existence than an infinite chain of suspended links explains what holds the chain up. There must therefore be a being that exists independently and sustains everything else. Without such a foundation, the existence of the universe remains unexplained.

The order of the universe also points toward intention. The physical laws and constants governing the universe fall within extraordinarily narrow ranges that permit complexity, stability, and life. Even slight changes would prevent stars, chemistry, and living organisms from existing. Chance may account for simple outcomes, but it does not adequately explain a system that is both highly ordered and finely balanced. The more reasonable explanation is that these conditions were deliberately calibrated, pointing to an intelligent cause.

Human moral experience points in the same direction. People recognize certain moral truths as objective, such as the wrongness of cruelty and the superiority of justice over injustice. These are understood as truths, not personal preferences. If morality were only the product of biology, society, or evolution, then no moral obligation could be genuinely binding. Objective morality is best explained by a moral source that transcends human beings and cultures.

Together, these considerations point to a single conclusion: the best explanation for the existence, order, and moral dimension of reality is a Creator who is uncaused, independent, intelligent, powerful, and morally authoritative.

The Oneness of God

If God is the ultimate explanation for why anything exists, then He must be a necessary being. A necessary being exists by its own nature. It does not depend on anything else, and it cannot fail to exist. Everything else is contingent, meaning it exists only because of prior causes and conditions. The foundation of reality cannot be contingent, because something dependent cannot ultimately explain existence. The ultimate source must therefore exist by its own nature and sustain everything else without being sustained.

The idea of multiple gods contradicts this. If there were more than one god, then either one could overpower the other, or neither could. If one could overpower the other, then only the one with ultimate authority would be truly necessary. The other would be dependent and therefore not divine. If neither could overpower the other and both were equal, then neither would be necessary, because reality would not depend uniquely on either one. Their existence would be redundant, and neither could be the ultimate explanation for everything that exists. By definition, necessary existence cannot be shared.

Islam’s concept of God follows directly from this reasoning. God is the one necessary being upon whom everything else depends. He is eternal, self-sufficient, all-powerful, and all-knowing, while remaining completely independent of creation. Nothing sustains Him, and nothing resembles Him. This understanding preserves God as the ultimate explanation for existence and avoids the contradictions that arise when necessity, dependence, and plurality are confused.

The Necessity of Revelation

Human reason is a powerful tool, but it has limits. It can explain how the world works, but it cannot establish ultimate purpose, binding moral obligation, or final accountability with certainty. Questions about the meaning of life, objective morality, and life after death remain unresolved. This is reflected in the enduring disagreements among philosophers and cultures, each reaching different yet internally consistent conclusions.

These disagreements are not accidental. They show that human reason alone cannot answer questions beyond the physical world and human experience. If human beings were created for a purpose and are accountable for how they live, then that purpose and standard of accountability cannot be discovered through speculation alone. Such guidance must come from a source beyond human limitation, with complete knowledge of both the seen and the unseen.

Revelation is therefore not an arbitrary religious claim but a logical necessity. Without it, human beings are left to answer life’s greatest questions using a tool that consistently produces disagreement and uncertainty. Revelation provides a fixed standard that explains our purpose, grounds moral obligation, and reveals what lies beyond death. It allows reason to operate with certainty rather than speculation.

The Qur’an as Divine Revelation

The Qur’an presents itself not as a human reflection on God, but as God’s direct revelation. Unlike other religious traditions that appeal mainly to external miracles, the Qur’an presents itself as the primary proof of Muhammad’s prophethood. It invites people to examine its language, structure, and message as an enduring public sign.

This claim first depends on whether the text has been reliably preserved. The Qur’an was revealed in a society with a strong culture of memorization, where recitation formed part of daily worship and education. From the beginning, it was both memorized and written down. Many companions, including Abu Bakr al-Ṣiddīq, ʿUmar ibn al-Khaṭṭāb, ʿUthmān ibn ʿAffān, ʿAlī ibn Abī Ṭālib, Ubayy ibn Kaʿb, ʿAbdullāh ibn Masʿūd, Muʿādh ibn Jabal, Zayd ibn Thābit, and Abū al-Dardāʾ, memorized it in full.[1] Written manuscripts and widespread memorization created two independent methods of preservation.[2] After the Prophet’s death, Abū Bakr commissioned Zayd ibn Thābit to compile the Qur’an under strict verification standards, and ʿUthmān later standardized the text into a single official codex.[3] Early manuscripts, including the Birmingham, Ṣanʿāʾ, and Topkapi manuscripts, closely match the Qur’an in use today, providing strong historical evidence for its preservation.[4][5]

The Qur’an also appeals to its own literary character. It follows neither the patterns of Arabic poetry nor rhymed prose, yet displays a distinctive style marked by precision, rhetorical force, and linguistic consistency. It openly challenges its audience to produce even a single chapter comparable to it, despite being revealed among a people renowned for eloquence.

And if you are in doubt about what We have sent down upon Our servant, then produce a chapter like it. (Qur’an 2:23)

No successful response to this challenge has been recognized, and the Qur’an’s literary qualities continue to be acknowledged even by non-Muslim specialists in Arabic literature.

In choosing to call the present work The Koran Interpreted, I have conceded the relevancy of the orthodox Muslim view, that the Koran is untranslatable. Briefly, the rhetoric and rhythm of the Arabic of the Koran are so characteristic, so powerful, so highly emotive, that any version whatsoever is bound in the nature of things to be but a poor copy of the glittering splendour of the original.[6]

Its internal coherence also deserves attention. Although revealed over approximately twenty-three years in changing circumstances, the Qur’an consistently presents the same worldview. Across its discussions of theology, law, ethics, history, and society, it repeatedly returns to the themes of divine oneness, human accountability, justice, and mercy.

The Qur’an also points to observable signs that support its claim. It directs readers to reflect on history, human nature, and the natural world as evidence of a purposeful Creator. It also contains public predictions, including the prophecy that the Byzantine Empire would recover after a major defeat.

The Romans have been defeated in a nearby land, but after their defeat they will overcome within a few years.\ (Qur’an 30:2–4)

The Byzantine victory occurred within the period described, making the prediction open to public verification rather than vague speculation. Alongside its preservation, literary uniqueness, and internal coherence, this forms a cumulative case that the Qur’an is not merely a human work, but divine revelation that provides the guidance human reason alone cannot attain.

The Prophethood of Muhammad ﷺ

The preservation of the Qur’an naturally raises the question of the prophethood of Muhammad ﷺ, the man who conveyed it. Before claiming prophethood at the age of forty, he was widely known for his honesty and integrity, earning the title al-Amīn (the Trustworthy). Merchants, including Khadijah bint Khuwaylid, entrusted him with their wealth because of his reputation.[7] He avoided the idol worship and tribal rivalries of Mecca, preferring solitude and reflection. When he began preaching monotheism, he gained neither wealth nor power. Instead, he faced boycott, persecution, exile, and the loss of family, status, and security.

Muhammad ﷺ emerged from a society with no established tradition of scripture or systematic theology, yet over twenty-three years he proclaimed the Qur’an, introducing a comprehensive worldview centered on divine oneness, moral accountability, and justice. Within a generation, Arabia was transformed from divided tribes into a unified civilization. Historians such as W. Montgomery Watt note the unprecedented combination of religious and political leadership he exercised.[8] The Qur’an also states that he was unlettered:

You (O’ Messenger) did not recite before it any scripture, nor did you inscribe one with your right hand.
(Qur’an 29:48)

Alternative explanations fail to account for the historical evidence. The claim that Muhammad ﷺ knowingly invented his message is difficult to reconcile with his life. He rejected offers of wealth, power, and status if he would abandon his mission. Instead, he endured years of persecution, economic boycott, physical abuse, and exile, despite having every opportunity to end his suffering by abandoning his claim.[9]

The claim that he was deluded or mentally unstable is equally difficult to maintain. The Qur’an remained internally consistent across twenty-three years of revelation, while Muhammad ﷺ consistently demonstrated sound judgment and effective leadership. His planning at the Battle of Badr and his diplomacy during the Treaty of Hudaybiyyah reflect careful strategy and long-term thinking rather than impaired judgment.[10]

The claim that the Qur’an was borrowed from earlier traditions is also difficult to sustain. Muhammad ﷺ was unlettered and had no access to centers of theological learning. More importantly, the Qur’an does not simply repeat earlier traditions. It frequently challenges them, rejecting doctrines such as the Trinity and the incarnation while presenting a distinct and coherent theology centered on divine oneness and accountability.[11]

Taken together, the historical evidence points to the simplest explanation: Muhammad ﷺ was truthful in his claim to prophethood. He was known for honesty before his mission, proclaimed a message preserved with exceptional care, presented a text of unique literary character, endured immense hardship without worldly gain, and consistently maintained his claim throughout his life.


  1. Nöldeke, T. (2013). Geschichte des Qorâns. (A. Rippin, F. M. Donner, & N. Sinai, Eds.). Brill. ↩︎

  2. Graham, W. A. (1989). Beyond the written word: Oral aspects of scripture in the history of religion. Cambridge University Press. ↩︎

  3. Donner, F. M. (1998). Narratives of Islamic origins: The beginnings of Islamic historical writing. Darwin Press. ↩︎

  4. University of Birmingham. (2015). The Birmingham Qur’an manuscript. Brill. ↩︎

  5. Sadeghi, B., & Bergmann, U. (2010). The codex of a companion of the Prophet and the Qur’ān of the Prophet. Arabica, 57(4), 343–436. ↩︎

  6. Arberry, A. J. (1955). The Koran interpreted. Oxford University Press. ↩︎

  7. Graham, W. A. (1989). Beyond the written word: Oral aspects of scripture in the history of religion. Cambridge University Press. ↩︎

  8. Watt, W. M. (1956). Muhammad at Mecca. Oxford University Press. ↩︎

  9. Ibn Ishaq. (1955). The life of Muhammad (A. Guillaume, Trans.). Oxford University Press. ↩︎

  10. Muir, W. (1858). The life of Mahomet. Smith, Elder & Co. ↩︎

  11. Reynolds, G. S. (2018). The Qur’an and the Bible: Text and commentary. Yale University Press. ↩︎