Question 1: same referent?
Are the three faiths trying to refer to the same one creator? Oxford's T. J. Mawson: 'the issue is primarily one of reference'; he argues serious errors about a being don't necessarily stop you referring to it.
Reviewed August 2026
Do Muslims, Christians, and Jews worship the same God?
This one has a real answer: it's just not yes or no. It's two questions: are the faiths pointing at the same one creator, and do they describe that creator the same way? The Vatican, the Qur'an, and Egypt's Dar al-Ifta answer the first affirmatively, in writing. On the second, the cited Catholic and Muslim sources themselves document material doctrinal disagreements. Below: who says what, by name.
Two questions wearing one question's clothes
Split it the way the philosophers do, and the shouting match becomes two answerable questions.
Question 2: same conception?
Do they describe that God the same way, or accept each other's worship as valid? Those come apart from question 1, which is why Bogardus and Urban's peer-reviewed answer to the whole debate is, in their own words, 'it depends.' Most arguments about this topic are two people answering different questions at each other.
Who says what, by name
Vatican documents, the Qur'an in Abdel Haleem's Oxford translation, and named theologians and rabbis on every side.
The Second Vatican Council
Catholic Church, documents promulgated 1964-1965
Muslims 'adore the one God, living and subsisting in Himself; merciful and all-powerful, the Creator of heaven and earth' (Nostra Aetate, 1965); Lumen Gentium (1964) says Muslims 'along with us adore the one and merciful God.' The same documents note Islam does not acknowledge Jesus as God or the Trinity: same referent, materially different conception, both halves official.
Pope John Paul II
addressing Muslim youth, quoted in a 1999 audience
First person, no hedging: 'We believe in the same God, the one God, the living God, the God who created the world.'
The Qur'an, 29:46
Abdel Haleem's Oxford translation
Addressing Jews and Christians directly: 'our God and your God are one [and the same]; we are devoted to Him.'
Dar al-Ifta
Egypt's fatwa institution
Calls Jews and Christians 'fellow believers in the One God and the recipients of divine scriptures from Him.'
Yaqeen Institute
the Muslim qualification, running the other way
While noting Islam reveres Jesus as Messiah and prophet, states plainly that 'there are substantial differences between Islam and traditional Christian theology': no Trinity, no divine Jesus, no crucifixion-as-atonement.
Miroslav Volf
Yale theologian
Argues Christians and Muslims have enough overlap to speak of 'a common God', and calls the 'moon god' internet claim 'historically false.'
John Piper
evangelical pastor (the Protestant dissent)
Argues the opposite: 'you can't be worshipping the Father if you are rejecting him', making the reception of Jesus decisive. There is no single Protestant position.
Rabbi Reuven Firestone
one Jewish answer
Writes that all believers in one God 'derive their entire spiritual existence from the same deity.'
Rabbi Eric Woodward
the Jewish counter-note
Points to Maimonides and Meiri answering differently and warns that 'easy answers ought to be viewed with suspicion.' Attribute the theologian, not the religion.
'Allah' is Arabic for God, a language fact, not a gotcha
Harvard's Pluralism Project states it flatly: 'Allah is the word for God in Arabic, used by Arabic-speaking Christians, Jews, and Muslims.' But the same fact cuts both ways: shared vocabulary alone doesn't settle the philosophical question either, as Bogardus and Urban note. It's evidence about Arabic, not a debate-ending proof for anyone.
How to actually have this conversation
The sourced sequence: ask which question the other person means. Same referent, or same doctrine? Attribute answers ('Catholic teaching says,' 'Piper argues') instead of 'Christians believe.' State the documented overlap: the Vatican, the Qur'an, and Dar al-Ifta all name one creator as the intended referent. State the documented disagreement: Trinity and the divinity of Jesus are genuinely not shared, and some theologians treat that as decisive. And it's fine to land where the philosophers land: a careful it-depends-on-the-question is a more accurate answer than a confident yes or no.
Same-God questions, answered plainly
Do Muslims and Christians worship the same God?
It depends which question you mean, and that's the peer-reviewed answer, not a dodge. On 'same referent': Vatican II states Muslims 'adore the one God, living and subsisting in Himself,' and the Qur'an (29:46) says 'our God and your God are one.' On 'same conception': no, Christianity's Trinity and the divinity of Jesus are not Islamic doctrines, and some Protestant theologians like John Piper treat that difference as decisive against 'same God.' Attribute the answer to its holder.
Is Allah a different god from the God of the Bible?
'Allah' is simply the Arabic word for God, Harvard's Pluralism Project states it is 'used by Arabic-speaking Christians, Jews, and Muslims.' The 'Allah is a moon god' claim is, in Yale theologian Miroslav Volf's words, historically false. Whether the theologies describe God the same way is a separate question, they don't, on the Trinity, but the word itself is shared vocabulary, not a different deity's name.
What does the Catholic Church say about the God of Islam?
Officially, since 1965: Nostra Aetate declares that Muslims 'adore the one God, living and subsisting in Himself,' and Lumen Gentium says Muslims 'along with us adore the one and merciful God.' Pope John Paul II told Muslim youth: 'We believe in the same God, the one God, the living God.' The same teaching notes Islam does not accept Jesus as God or the Trinity, so the Catholic position is same referent, different conception, both stated explicitly.
What does the Qur'an say about the God of Jews and Christians?
Addressing the People of the Book, Qur'an 29:46 (Abdel Haleem's Oxford translation) says: 'our God and your God are one [and the same]; we are devoted to Him.' Egypt's Dar al-Ifta describes Jews and Christians as 'fellow believers in the One God and the recipients of divine scriptures from Him.' This affirms one shared referent, it does not mean Islam accepts the Trinity or the divinity of Jesus, which Islamic theology explicitly rejects.
Do all Christians agree that Muslims worship the same God?
No. Catholic teaching and theologians like Yale's Miroslav Volf answer yes on shared reference; evangelical voices like John Piper answer no, 'you can't be worshipping the Father if you are rejecting him.' There is no single Protestant position, and Jewish thought is likewise internally varied (Maimonides and Meiri are the classic contrasting examples). Accurate statements name the denomination or theologian rather than saying 'Christians believe.'
Does 'same God' mean all three religions are equally true?
No, reference, truth, worship, and salvation are four separate questions, and the cited authorities who affirm a shared referent still answer the others differently. Vatican II affirms one God while maintaining Catholic doctrine in full; Islamic institutions affirm one God while holding the Qur'an as final revelation. 'Same referent' is the narrow, documentable claim; it settles none of the doctrinal disagreements.
Every position here belongs to its named holder (Vatican II, John Paul II, Dar al-Ifta, Yaqeen, Volf, Piper, Mawson, Bogardus and Urban, Firestone, Woodward), and the disagreements among them are reported, not resolved. Qadir is a directory, not a seminary; it issues no theological verdicts.