In the 13th century, a debate transpired over the course of several days between a monk named Jurjī and several Muslims jurists in the city of Aleppo. This debate represents a careful and sophisticated example of a literary genre that had been developing among the Christians living under Islamic rule since the seventh century. The immense popularity of this work is demonstrated by the sheer volume of surviving manuscripts, which number around hundred. This volume provides a critical edition and translation of the text.