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ISAAC.
ISAAC, a Priest of the Church of Antioch, hath written several Books in Syriack; the principal of them are against the Nestorians and Eutychians. He hath also made a Poem, * 1.1 wherein he bewails the destruction of Antioch, as S. Ephrem before him had lamented the Ruin of Nicomedia. This Isaac Died under the Empire of Leo, and Marcian, about the Year 454. There was also another Younger of the same Name, who lived to the end of the Sixth Age, as S. Gregory tells us, in the Third Book of his Dialogues. The Treatise concerning the Contempt of the World, which bears the Name of Isaac in the Biblioth. Patr. [Tom. XI.] ought to be imputed to the latter, rather than to the former. Trithemius hath made a Catalogue of the Works of the former in the following manner, viz. Two Books against the Nestorians, and Eutychians, An Exhortation to a Spiritual Life; A Book of Fight∣ing against Vices; A Book concerning our Approach to God; A Book of the difficulty in pra∣ctising Vertue; A Dialogue of our Spiritual Growth; A Book of the Order of Monks; A Treatise of Humility; A Book of the Three Orders of Proficients; One of the Privacy of Monks; One of the diversity of Temptations; One of the Instruction of Novices; One of Repentance; A Poem upon the destruction of Antioch. He had seen these Treatises, and marks the beginnings of them. He adds moreover, That this Author had made several Homilies which had never fallen into his Hands.