Dionysius Bar Salibi (d. 1171, Syrian Orthodox bishop of Amid, was one of the most prolific writers in Syriac language. The famous 12th century Syrian Orthodox historian Michel the Syrian described him as “the eloquent doctor, the star of his generation, lover of work like Jacob of Edessa”. Bar Salibi’s commentary on the Eucharist is an invaluable witness to the history of the Syriac version of the anaphora of St James. His main source was the commentary of Moses bar Kepha (d. 903). Other sources include the commentaries of Jacob of Edessa, George bishop of the Arabs, and of John of Dara, as well as a 5th anonymous commentary and the Syriac version of the ‘Ecclesiastical Hierarchy’ by Pseudo-Dionysius the Areopagite. The Syriac text was published by H.Labourt in 1903 (CSCO 13–14) with a Latin translation. Fr. B. Varghese provides here an English translation of the text.