Twenty Chapters

The literary works of ninth-century scholar Dawud al-Muqammas, who converted from Judaism to Christianity and then back to Judaism, reflect his pioneering approaches during a formative time in Jewish and Muslim medieval philosophy. A master of diverse genres, he composed in the ninth century, among other works, the thoughtful *Twenty Chapters*, which is not only the first known Jewish *Kalam* text, but also the earliest extant theological *summa* written in Arabic. This authoritative edition includes the full Judeo-Arabic text in Arabic letter transcription with a facing English translation, as well as an introduction, notes, bibliography, and index.