Do Jews and Christians believe in the same God?

Islam answers this question with a remarkable degree of confidence: yes, Jews and Christians are worshipping the same God, the one God who created the heavens and the earth, who spoke to Abraham, who sent Moses and Jesus. The Arabic word for this God is Allah, which is simply the Arabic word for God, used by Arab Christians and Jews as much as by Muslims. The Quran addresses Jews and Christians directly as "People of the Book," a designation that carries genuine honour. It acknowledges that their scriptures came from divine revelation, that their prophets were real prophets, and that their communities were formed in genuine response to God's guidance. This is not a polite diplomatic gesture. It is a theological conviction built into the foundations of Islamic belief.

The Quran is clear that the God who revealed himself to Muhammad is the same God who revealed himself to Ibrahim, Musa and Isa, the figures known in English as Abraham, Moses and Jesus. Muslims are required to believe in all the prophets, not as a courtesy but as a matter of faith. To reject Moses or Jesus as genuine messengers of God would be to fall outside Islamic belief entirely. This shared lineage matters deeply. When a Muslim prays, they are consciously continuing a tradition of monotheistic worship that stretches back through the Arabian peninsula, through the Hebrew prophets, and ultimately to the very first human beings. The story of humanity, in Islamic understanding, is a single story of God reaching out to people, again and again, through chosen messengers.

Where Islam introduces nuance, however, is in distinguishing between the original revelations given to Jews and Christians and what those communities subsequently came to believe. Islamic theology holds that the Torah and the Gospel were genuine divine scriptures, but that over centuries these texts were altered, misunderstood, or had interpretations layered onto them that moved away from the original message. The doctrine of the Trinity, from an Islamic perspective, represents exactly this kind of deviation. The Quran challenges the idea that God could be three persons, or that Jesus is the son of God in a literal sense, insisting that such beliefs compromise the absolute oneness of God, what Islam calls tawhid. So while Muslims affirm that Christians intend to worship the one true God, they would say that certain Christian theological formulations describe God in ways that are, in their view, mistaken. It is a distinction between sincerity of intention and accuracy of understanding.

Jewish theology tends to sit closer to Islamic theology on the nature of God, since both traditions share a strong emphasis on divine unity and resist any notion of God having a physical form or a divine partner. Many Muslim scholars across history have reflected on this affinity, and the Quran itself describes the closest relationship in terms of belief as being with those who say "we are Christians," partly because of their acknowledgement of multiple prophets and their spiritual orientation. At the same time, Muslim thinkers have engaged seriously with Jewish theological traditions, and the overlaps are often striking. The great medieval scholars, figures like Ibn Rushd and Al-Ghazali, were in genuine intellectual conversation with Jewish and Christian thinkers of their era, wrestling over shared questions about divine attributes, free will, and the nature of prophetic knowledge. This history of serious dialogue is worth holding onto.

If you are working through this question personally, perhaps because you have friendships or family ties across these faiths, Islam offers you something steady to stand on. You are not being asked to pretend that all religious differences are trivial, or that it does not matter what anyone believes. But you are also not required to conclude that your Jewish or Christian neighbour is praying into a void, or calling on some other being entirely. The Islamic position is that God hears those prayers, that God knows those hearts, and that the ultimate judgment of how close any soul came to truth belongs to God alone. There is a verse in the Quran that speaks of the vast diversity of human communities and traditions, and suggests that God will clarify what they differed about. That is not a dismissal of difference. It is a reminder that the differences are real, but so is the mercy of the one who holds them all.