"The most important of all things sought." Thus the Syriac Orthodox monk Rabban Daniel Ibn al-?a??ab describes the subject of The Principles of Religion, written in the 13th century, probably in South-East Anatolia. In this treatise, Rabban Daniel Ibn al-?a??ab systematically explained and defended fundamental commitments of Syriac Orthodox theology.

This volume provides an introduction, a critical edition of the Arabic text, an English translation, and extensive commentary on the influences on The Principles of Religion, particularly from Syriac sources. This editio princeps offers the reader a new window into the literary culture of the Syriac Orthodox Church during the years of the Syriac Renaissance.