This chapter opens with a note on the naive concept of revelation as it appears in the Hebrew Scriptures. An account of the accommodation of Jewish thought to Hellenistic models by Philo leads to a remark on Talmud and early Jewish mysticism. Medieval philosophers such as Saadia and Maimonides attempted not only to present Jewish belief and practice in rational form but to justify its claim to possession of the only authentic revelation; the kabbalistic or mystical reaction is described. The moral, historical, and scientific concerns brought into focus by Spinoza, who appealed to reason as the criterion of what constituted revelation, are then outlined; Jewish responses to issues he raised are discussed. The chapter shows how Jewish responses to the Enlightenment generated different interpretations of revelation, leading to the formation of Reform, Conservative, and Orthodox denominations of Judaism. Moving rapidly through the twentieth and twenty-first centuries, we survey interpretations of revelation by Jewish thinkers including Hermann Cohen (‘progressive’ revelation), Martin Buber (revelation as ‘encounter’), J. D. Soloveitchik (halakha as a priori system), Abraham J. Heschel (between immanence and transcendence), Emil Fackenheim (Holocaust theology), and Tamar Ross (feminism, ‘cumulative’ revelation), concluding with a selection of contemporary thinkers who reinterpret the language of revelation in non-dogmatic terms.