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Jacob Bar-Salibi also known as Dionysius Bar-Salibi was the best-known and most prolific writer in the Syriac Orthodox Church of the twelfth century.
Bar-Salibi was, like Bar-Hebraeus, a native of Malatia on the upper Euphrates. In 1154 he was created bishop of Marash by the patriarch Athanasius VII bar Qatra; a year later the diocese of Mabbog was added to his charge. 
Of his writings probably the most important are his exhaustive commentaries on the text of the Old and New Testaments, in which he skillfully interwove and summarized the interpretations of previous writers such as Ephrem, Chrysostom, Cyril, Moses Bar-Kepha and John of Dara, whom he mentions together in the preface to his commentary on St Matthew. Among his other main works are a treatise against heretics, containing inter alia a polemic against the Jews and the Muslims; liturgical treatises, epistles and homilies. 
- Dionysius bar Salibi, In Apocalypsim, Actus et Epistulas Catholicas, trans. I. Sedlacek, Romae : Karolus de Luigi (1909).