Muslims and Christians have been in theological conversation for close to fourteen centuries, and certain objections resurface with such regularity that they have become something like a fixed script. A Christian critic raises the charge that the Qur’an merely borrows from earlier Jewish and Christian scripture, that Islam demotes Jesus by denying his divinity, and that the Islamic doctrine of God as one indivisible being is somehow theologically thin compared to the Trinity. At Muslim Answers, we hear versions of these objections often enough that it is worth setting out, calmly and in one place, why Muslims find each of them unpersuasive on close examination. This is not an attempt to provoke a quarrel with Christian readers, many of whom raise these points in good faith. It is an attempt to explain, in plain terms, why the Islamic answers to them are coherent, textually grounded, and intellectually serious.
On the charge that the Qur’an “borrows” from earlier scripture
The claim that the Qur’an derives its narrative material from Jewish and Christian sources is one of the oldest objections to Islam, dating back to the earliest centuries of Muslim-Christian polemic. The argument usually runs as follows: because the Qur’an contains stories about Adam, Noah, Abraham, Moses, and Jesus that overlap with material found in the Hebrew Bible, the New Testament, and various extra-biblical Jewish and Christian writings, it must be a derivative text rather than a revealed one.
This objection rests on an assumption that Muslims do not share and have never needed to share: the assumption that shared content implies literary dependence rather than a shared divine source. From the Islamic perspective, the Qur’an does not claim to introduce a brand-new religion unconnected to what came before. It explicitly presents itself as a confirmation and correction of the message delivered to earlier prophets, from Adam through Noah, Abraham, Moses, and Jesus, all of whom Muslims regard as messengers of the same God delivering the same essential message of monotheism. Overlap in subject matter is therefore not an embarrassment to be explained away; it is exactly what the Qur’an’s own self-description predicts. A father telling the same core life lesson to several children across the decades is not “borrowing” from himself each time he repeats it.
It is also worth noting that the differences between the Qur’anic accounts and their biblical or extra-biblical counterparts are often more theologically significant than the similarities. The Qur’anic Abraham, for instance, is presented primarily as the archetype of uncompromising monotheism who breaks his community’s idols, a theme given far less prominence in the Genesis narrative. The Qur’anic Joseph story is arranged as a single sustained chapter with a moral and rhetorical structure unlike its counterpart in Genesis. If the aim were simple imitation, one would expect closer replication rather than selective emphasis, theological reframing, and, in many cases, direct correction of details found in other traditions. Muslims understand these divergences as evidence that the Qur’an is delivering an authoritative, corrective account of shared prophetic history, not copying a source text.
Finally, this objection proves too much if pressed consistently. Every scripture in the Abrahamic family shares material with what preceded it. The New Testament quotes and reinterprets the Hebrew Bible extensively; later Jewish literature reworks earlier Israelite tradition. If shared subject matter disqualified a text from being revelation, the same logic would undermine texts the objector considers sacred. Muslims simply ask that the standard applied to the Qur’an be applied evenhandedly.
There is a further point worth making about the oral and cultural setting in which the Qur’an was revealed. Seventh-century Arabia was not a closed environment; Jewish tribes, Christian communities, and various Arabian monotheist groups were present throughout the peninsula, and stories from their traditions circulated widely in oral form. The presence of this shared cultural memory is precisely why the Qur’an assumes its audience already has some familiarity with figures like Abraham, Moses, and Mary rather than introducing them as strangers. A revelation intended to confirm and correct existing prophetic knowledge would naturally speak in the idiom already known to its listeners. That the Qur’an does exactly this is, again, consistent with its own claims about its purpose, rather than evidence against them.
On the denial of Jesus’s divinity
The second objection is more personal and, for many Christians, more central: the sense that by denying Jesus’s divinity, Islam somehow diminishes or insults him. This framing, however, reverses the Islamic understanding entirely. Islam does not regard the denial of divinity as a demotion of Jesus. It regards the denial of divinity as a restoration of Jesus to his rightful and exalted place as one of the greatest prophets God ever sent.
The Qur’an speaks of Jesus, referred to as Isa, in terms of profound honor. He is called the Messiah, a word of God, a spirit from God, and one brought into being through a miraculous virgin birth without a human father, a sign for all peoples. He is described as speaking from the cradle, healing the sick, and giving life to clay birds by God’s permission. Few figures in the Qur’an are treated with comparable reverence. What Islam rejects is not Jesus’s greatness but a particular metaphysical claim about his nature, namely that he shares in the essence of God.
From the Islamic vantage point, this rejection is not a slight against Jesus; it is a defense of the very message Jesus himself is understood to have preached, which Muslims believe was pure monotheism, later overlaid with doctrines that developed among his followers in the centuries after his ministry. Consider the matter from within Islam’s own logical framework: if God is one, indivisible, and utterly transcendent, then declaring any created being, however exalted, to be God is not a compliment to that being. It is a category error, and Muslims believe it is one that Jesus himself would have firmly rejected, since the Qur’an describes him disavowing any claim that he told people to worship him instead of God. Elevating a prophet to divine status, in Islamic theology, does not honor the prophet. It obscures the very message the prophet was sent to deliver.
There is also a pastoral dimension to this point that is easy to miss in the heat of debate. Many Muslims feel a real affection for Jesus as a prophet and long for Christian dialogue partners to understand that this affection is genuine, not a diplomatic gesture. The disagreement is precise and narrow: not whether Jesus was extraordinary, miraculous, and beloved of God, but whether he was God incarnate. Muslims answer no, and they do so out of the conviction that anything else compromises the very foundation on which they believe Jesus’s own preaching rested.
It is sometimes suggested that a purely human, if prophetic, Jesus is a lesser figure than a divine one, as though greatness in a person can only be measured by proximity to godhood. Islamic theology does not accept this measure. In the Qur’anic view, the greatest honor a human being can receive is not to be declared divine but to be chosen as a messenger entrusted with guiding humanity back to its Creator, a station given to a select few across all of history. Jesus, in this framework, stands among an elite company that includes Abraham, Moses, and Muhammad, each honored not by absorption into the Godhead but by the unique responsibility of prophethood. Measured by that standard, Jesus loses nothing in Islam. He is honored as one of the most significant human beings ever to have lived, precisely because he was fully human and yet spoke with the authority of revelation.
On the oneness of God versus the Trinity
The third objection holds that a strictly unipersonal God, as Islam describes Him, is somehow a thinner or less rich theological conception than a Trinitarian God who exists as three persons in one essence. Some Christian critics frame Islamic monotheism as a kind of severe, undifferentiated deity lacking the relational depth that Trinitarian theology is said to provide.
Muslims respond to this on two levels. The first is textual and theological: the Qur’an’s insistence on God’s absolute oneness, tawhid, is not presented as a deficiency to be apologized for but as the central axis of the entire religion, the truth from which everything else in Islamic belief and practice flows. God is described as having no partner, no offspring, and no equal, not because His nature is simple in a diminished sense, but because any division of His essence, in Islamic thought, would compromise the very qualities that make Him God: absolute sovereignty, absolute self-sufficiency, and absolute uniqueness. From within this framework, a God who could be divided into persons, however unified those persons are said to be, is not a richer God. He is a God whose oneness has been qualified, and a qualified oneness is, to Muslim theological sensibility, no longer true oneness at all.
The second level is philosophical. Islamic theologians going back many centuries have argued that a strictly single divine essence better satisfies the demands of philosophical monotheism than a triune one, precisely because it avoids the difficult questions that any doctrine of divine multiplicity in unity must answer: how three distinct persons can each be fully God without there being three gods, and how internal relations within the Godhead do not compromise divine simplicity. Muslims do not raise these questions to score points in isolation; they raise them because tawhid was, from the outset, understood as a rational as well as a revealed truth, one that requires no elaborate framework of persons and relations to be intellectually complete. Simplicity, on this view, is not a shortage of theological content. It is the fullest expression of what it means for God to be God: unconditioned, uncomposed, and utterly without need of another to complete Him.
It is also worth adding that describing God as strictly one need not mean describing Him as remote or impersonal. The Qur’an describes God as closer to a person than his jugular vein, as endlessly merciful, forgiving, and responsive to prayer. Relational warmth, in Islamic theology, does not require a plurality of persons within the Godhead. It requires only that the one God be as attentive, compassionate, and near as the Qur’an consistently describes Him to be.
A closing note
None of this is offered as the final word in a centuries-old conversation, nor is it offered with any hostility toward Christian readers who hold these objections sincerely. Muslim Answers exists to provide considered, respectful responses to questions that are asked of Muslims often and answered carelessly just as often. On the question of scriptural overlap, on the status of Jesus, and on the nature of God’s oneness, the Islamic tradition offers answers that are neither evasive nor defensive but rest on a coherent internal logic worth understanding on its own terms, whether or not one ultimately agrees with it. Genuine interfaith dialogue is better served by that kind of clarity than by the assumption, on either side, that the other tradition’s position is simply a lesser version of one’s own.