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[German Version] (ben David; acronym Rabad I; c. 1110, Córdoba – 1180, Toledo), historian, philosopher, and scholar. Ibn Daud was one of the leading personalities of the Jewish community in 12th-century Spain. He acquired an extensive knowledge of philosophy, medicine, and astronomy in his native town of Córdoba, and was also familiar with the Qurʾān and the New Testament. His main historical work, Sefer ha-Kabbalah (ET: The Book of Tradition, 1967), was on the one hand a polemical tractate against the Karaites, who rejected rabbinic tradition; Ibn Daud according…

[German Version] a literary genre, which became frequent in Hebrew ethical literature in the Middle Ages and modern times, deriving its roots from midrashic literature (Midrash) and which may have been influenced by comparable literary devices in Christian medieval literature. An early medieval example of the use of exempla was the anthology Midrash Aseret ha-Dibrot (“Expounding the Ten Commandments”), which originated probably in Babylonia in the 7th and 8th centuries. This work contains examples of …

[German Version] (1771, Medshibosh, Ukraine – 1811, Uman, Ukraine). Rabbi Nahman ben Simhah was one of the most influential leaders of the Hasidic movement (Hasidism). Although he was the great-grandson of Baʾal Shem Tov, the founder of Hasidism, only a small group of adherents gathered around him. On his pilgrimage to the Land of Israel (1798) he was able to escape Napoleon's siege of Akko aboard a Turkish warship. When he returned to Europe he preached a new doctrine according to ¶ which there is only one true Zaddik, who is the redeemer of all the people of Israel. He did …

[German Version] (c. 855, Egypt – c. 955, Kairouan, Tunisia) earned his living as court physician in Kairouan. He is known as one of the founders of Jewish religious philosophy in the Middle Ages and was in contact with Saadia Gaon, the most influential philosopher of that age. His philosophical works, written in Arabic, had meaningful influence. They were also widely distributed in Europe (also among non-Jews) in their Hebrew and Latin translations. His Sefer ha-Gevulim ( Book of Definitions, trans. into Lat. by Gerard of Cremona) introduced the neo-Platonic concept of th…

[German Version] author of Hovot ha-Levavot (“The Duties of the Heart”), the most popular and influential work of Jewish ethics from the Middle Ages. It was originally written in Arabic and remains to this day a classic of Jewish spirituality. Very little is known about the author. He probably lived in Saragossa and was, besides this work, also the author of several Hebrew religious poems ( piyyutim), of which two were appended to his book. Rabbi Judah ibn Tibbon translated the book into Hebrew around 116…

[German Version] (“The Light of the Exiled”; c. 960, Metz – c.1028, Mainz), was the leading rabbinic authority in Germany and northern France at the beginning of the 11th century and the author of numerous talmudic commentaries (Talmud), halakhic decisions (Halakhah), and religious poetry. His name is connected with several takanot, i.e. rabbinic instructions, which are not derived directly from scriptures or tradition, as for example the prohibition of polygamy, though it is not explicitly prohibited in biblical and talmudic sources. Other takanot include the prohibition of …

[German Version] (“the Book of Brilliance”), also known as the Midrash of Rabbi Nechunia ben ha-Kanah (after the 2nd-cent. sage to whom the first paragraph in the book is attributed). It is the first work of the Kabbalah, and was written anonymously around 1185, probably in the Provence or in northern Spain. It contains around 200 paragraphs, which are attribu…

[German Version] Jewish physician, halakhist, and ethical writer in the second half of the 13th century in Italy. His best-known work is the ethical treatise, Maʾalot ha-Midot (“The ascending ethical qualities”), written c. 1287, one of the most important ethical works of that age. Yehiel bases his teachings on both traditional rabbinic education and rationalistic philosophical ideology which was dominant among Jewish intellectuals at that time. His attitude is moderate and worldly (among the recommended qualities, “weal…

[German Version] (Seletz near Horadna, April 1720 – Vilna, April 1797) was the most important halakhic authority (Halakhah) in East European Judaism in the last third of the 18th century, the leader of Lithuanian Jewry, and the leader of the opposition ( mitnaggedim) to the emerging Hasidic movement (Hasidism). He was called “gaon” (“highness,” the title of the leader in a high Rabbinic school), in recognition of his position of leadership in talmudic studies. He wr…

[German Version] was one of the major authors belonging to the Kalonymus circle of 13th-century Rhineland esoterics and mystics; he was among the third generation of scholars produced by this school. He came to Speyer from Bohemia to study with Rabbi Judah the Pious (died 1217) and especially with Rabbi Eleazar ben Judah of Worms, whom he referred to as his immediate teacher. He is the author of Arugat ha-bosem (“Bed of Spices”: Song 5:13), completed in 1234, an exhaustive commentary on the piyuttim of the Jewish prayer book. Its encyclopedic compass makes Arugat ha-bosem unique …

[German Version] (Naǧara; c. 1555, Damascus – c. 1625) is regarded as the great poet of the “golden age” of Jewish culture of the 16th century in Zefat. Following the destruction of the Jewish communities in Spain (1492) this Upper Galilean region, where various kabbalistic schools (Kabbalah) were situated, flourished. Although Nagara is often regarded as a kabbalistic poet, the Kabbalah did not occupy a meaningful place in his work. He served as the rabbi of the Gaza Jewish community for several …

[German Version] Kalonymus, one of the most prominent Jewish families into which important personalities were born between the 9th and 13th centuries. Their descendants exerted great influence on Jewish culture in Italy, Germany, and the Provence. Originally perhaps from southern Italy, the earliest mention of this family occurs in the Chronicle of Achimaaz (11th cent.). According to widespread tradition, part of the family was brought to Mainz from Italy by Charlemagne and rose to become the leading family of the Rhineland from the 9th century o…

[German Version] The Zohar is the most important book of the Kabbalah (II) and one of the most profound works of mysticism (III, 2.b.) in the Middle Ages. It joined the Bible and the Talmud as the three most sacred works of Judaism. According to G. Scholem it was written mainly by Rabbi Moses ben Shem Tov de Leon in northern Spain between 1270 and 1291; according to Isaiah Tishby it was written in the year de Leon died in 1305. Since 1280 de Leon was distributing sections of the Zohar, claiming th…

[German Version] (1533–1600 Safed), a leader of the spiritual center in Safed, kabbalist, preacher, and ethical teacher and mystic. His best-known work is Sefer Haredim (“The Book of the God-fearing”, printed in Venice in 1600), an ethical treatise dedicated to the elucidation of the commandments and instructions concerning a life of devotion and asceticism. In the introduction, he describes the establishment…

[German Version] (“the pious,” Yehuda ben Samuel of Regensburg; c. 1150, Speyer, Germany – 1217, Regensburg, Germany), leader of the school of esotericists and pietists of the Kalonymus family in the Rhineland. He wrote ethical works, especially the Sefer Hasidim (Hasidism, Ashkenazi) and a series of esoteric-mystical ones: Sefer ha-Kavod (“Book of Divine Glory,” ms. Oxford, Bodleiana 1566f.) and a lost six-volume Commentary on the Prayers (the earliest work of this genre known to us). In all three works his positions are radical: his view of the kavod is that of a divine power in…

[German Version] I. History of Religion – II. Judaism I. History of Religion It is an intriguing fact – and not easy to explain – that the map of the monotheistic or “book” religions largely coincides with the map of the languages that use an Alphabet. The reverence given to Scripture in these religions influenced the attitude of believers toward language and toward letters, its building blocks. Th…

[German Version] (died c. 1782, Polonnoye, Ukraine) was a Hasidic theologian (Hasidism), ¶ preacher and rabbi. He was a prominent disciple of the founder of the movement, Rabbi Israel Besht (Baʾal Shem Tov). Jacob served as a rabbi in Shargorod, in the Ukrainian area of Podolia, from which he was expelled in 1748. Late in his life he became the rabbi of Polonnoye. Jacob was never a leader of a Hasidic community, but he wrote the first Hasidic book to be published: Toledot Yaʾakov Yosef. (The titles of his books are based on biblical phrases which include his name, here Gen 37:2…

[German Version] (1460, Candia, Crete – 1497, Candia, Crete). A rationalist philosopher, who influenced Renaissance culture by his translations into Latin of numerous works by Averroes, including his commentary on Plato's Republic and his questions relating to Aristotle's Logic. Delmedigo was the head of the talmudic academy in Padua, and later joined the circle of Platonist humanists in Florence. He was one of the teachers of G. Pico della Mirandola and travelled several times from Crete to Italy. His best-known philosophical work is Bechinat ha-Dat (“Examination of Religion,”…

[German Version] (1240, Leon – 1305, Arevalo), the greatest Jewish mystic in the Middle Ages and the main author of the book Zohar, the central work of the Kabbalah. De Leon mainly studied Jewish philosophy and the writings of M. Maimonides, but later devoted himself to the teachings of the Gerona circle of kabbalists and the kabbalists of Castile. He wrote the Zohar pseudepigraphically, attributing it to ancient sages; it was composed mainly between 1280 and 1291 and most of it is in an artificial Aramaic which De Leon formulated, though sections were pro…

[German Version] (“The Poem of Divine Unity”) is a long theological poem which was written by an unknown Jewish scholar in the 12th century. It became one of the main expressions of the new conception of the divine world in this culture. The Shir ha-Yihhud expresses a radical transcendental conception of God the Creator, and at the same time insists on his immanence in all realms of creation. One of its sources was an early Hebrew translation (11th cent.) of the 10th-century rationalistic work, “Emunot we-De’ot” by Saadia Gaon. The poem h…