Do Jews and Christians believe in the same God?

For Jews, this question is not merely academic. It sits at the heart of a long, complicated, and sometimes painful shared history. The Jewish answer is layered, and honest Jewish thinkers across the centuries have resisted giving a simple yes or no. What most would say is this: Christians and Jews share a common root, a common scripture (what Christians call the Old Testament is, with some differences, the Jewish Tanakh), and a common framework of one God who created the world, chose a people, and cares about how human beings live. That much is genuine common ground, and Jewish thinkers have generally taken it seriously.

Where things become genuinely complicated, from a Jewish perspective, is the Christian doctrine of the Trinity. Judaism's most foundational declaration, the Shema, proclaims that God is one. Not one in a complex, internally differentiated sense, but radically, uncomplicatedly one. Medieval Jewish philosophers such as Maimonides thought carefully about divine unity and were insistent that any division or multiplicity within God was simply incompatible with what the word "God" means. When Christians speak of Father, Son, and Holy Spirit as three persons in one God, most Jewish thinkers, then and now, find this difficult to reconcile with that absolute unity. It is not that Jews typically think Christians are worshipping a different being altogether, but that they believe the Christian understanding introduces a complexity into God that Judaism cannot accept as coherent or correct.

The question of Jesus sharpens this further. For Judaism, the idea that God became human, took on flesh, suffered, and died is not just theologically unexpected. It touches on something Jews regard as a categorical distinction between Creator and creation. God, in Jewish thought, is wholly other, not limited by a body, not subject to death, not capable of being reduced to a particular human life, however extraordinary. Venerating or praying to a human figure, even one believed to be divine, has historically struck Jewish authorities as uncomfortably close to the kind of idolatry the Torah forbids. Some medieval authorities were quite hard-edged on this point. Others, including some later thinkers such as Rabbi Jacob Emden, took a more nuanced view, acknowledging that Christianity had brought genuine knowledge of the God of Israel to the wider world, even while holding that Christian theology as such was not binding on, or fully accurate for, Jews.

There is also a more generous strand in modern Jewish thought worth knowing about. Thinkers influenced by the philosopher Franz Rosenzweig, for instance, explored the idea that Judaism and Christianity might represent two distinct but related covenantal paths, both oriented toward the same God, even if they understand and approach that God differently. This does not mean Judaism accepts Christian doctrine, but it does mean that some serious Jewish thinkers have been willing to say that Christians are not simply lost, mistaken, or worshipping something alien. The same God, differently understood, differently approached. This kind of thinking has shaped some Jewish-Christian dialogue since the mid-twentieth century, particularly after the Holocaust prompted a serious reckoning with centuries of mistrust.

If you are wrestling with this personally, perhaps because you have faith in one tradition and love or respect someone in the other, the Jewish perspective offers you something useful. It holds the complexity without papering over it. It says: yes, there is real connection here, a shared source, a shared moral seriousness, a shared sense that this one God calls human beings to justice, kindness, and humility. And it also says: the differences are real, not trivial, and deserve honest acknowledgement rather than forced harmonising. You do not have to pretend the traditions are identical to find genuine common ground. Jewish thought, at its best, has always been comfortable holding that kind of tension, naming the disagreement clearly while still recognising the other as someone reaching, in their own way, toward something true.