Elias of Nisibis and his Book of Demonstration: An East Syriac Identity in Arabic Language
In his Book of Demonstration, Elias of Nisibis (d. 1046) presents the identity of the Church of the East, from doctrinal, historical, liturgical, and ethical perspectives, in an attempt to distinguish it from the rest of the Christian Churches living in the Abbasid Caliphate and beyond.
