The set of Jewish mystical teachings known as Kabbalah are often imagined as timeless texts, teachings that have been passed down through the millennia. Yet, as this groundbreaking new study shows, Kabbalah flourished in a specific time and place, emerging in response to the social prejudices that Jews faced.

Hartley Lachter, a scholar of religion studies, transports us to medieval Spain, a place where anti-Semitic propaganda was on the rise and Jewish political power was on the wane. Kabbalistic Revolution proposes that, given this context, Kabbalah must be understood as a...