Short answer
No. Kabbalah is influential in Judaism, but it has never been accepted in the same way by every Jewish community or thinker. Some regard it as the soul of the Torah, some treat it with respect but keep their distance, and some question its antiquity or its theology. Generalizing about “what Jews believe” on this topic is unreliable.
Early criticism
From its medieval emergence, Kabbalah had critics as well as admirers. Some rationalist thinkers, who followed the philosophical approach of Maimonides, were uneasy with mystical language about God. The concern was often about how to speak of divine attributes without implying that God has parts. Kabbalists responded that the sefirot are aspects of one God. Another long-standing debate concerns the age of the Zohar: the tradition credits an ancient sage, while many modern scholars see it as a medieval composition. In the 17th century, the rabbi Leon Modena’s critical work Ari Nohem questioned the book’s antiquity.
Hasidism and its opponents
The Hasidic movement, which arose in 18th-century Eastern Europe, drew heavily on Kabbalistic ideas and made them central to its teaching. Its opponents, known as Mitnagdim, generally emphasized Talmud study and were wary of mystical emphasis spreading too widely, though many of them also respected Kabbalah and the Vilna Gaon, a leading opponent of Hasidism, was himself a Kabbalist. So the disagreement was about emphasis and popularization, not simply for or against.
Modern movements
- Orthodox Judaism. Views vary by community. Kabbalah is respected in many, especially in Hasidic and Sephardic circles, and it influences prayer customs. Some communities still limit who studies it. See Is Kabbalah a Closed Practice?
- Reform and Conservative Judaism. Early leaders of the 19th-century reform and the “Science of Judaism” were often critical of mysticism, which they considered irrational. In recent decades there has been more interest in Jewish spirituality, including Kabbalah, in many liberal communities.
- Secular and cultural Jews. Many people with Jewish heritage have little connection to it, or approach it as history and literature.
Specific objections
The reasons some Jews are cautious about Kabbalah include:
- Doubts about the historical origins of its texts.
- Worry that mystical language might blur God’s unity.
- Concern about practical magic and amulets.
- Criticism of commercial and New Age versions that present Kabbalah detached from Jewish observance.
Takeaway
Kabbalah is a major part of Jewish thought and has shaped prayer, customs and literature, but acceptance is not universal. For its history and teachings, see Kabbalah Explained. For the Christian side of the question, see Is Kabbalah ok for Christians?