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Ibas of Edessa
(572 words)

Ibas (Hiba) was bishop of Edessa 433–457 CE, except for the years 449–451 CE. He was a member of the School of Edessa, and was active in the translation of writings in Greek into Syriac, particularly the works of Theodore of Mopsuestia. During the Nestorian controversy (Nestorianism/Nestorius), Ibas was on the opposite side from Rabbula, bishop of Edessa, a staunch supporter of Cyril of Alexandria’s miaphysite position. In a letter to Mari the Persian shortly after the Formula of Reunion was signed in 433 CE, Ibas cal…

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Doran, Robert, “Ibas of Edessa”, in: Brill Encyclopedia of Early Christianity Online, General Editor David G. Hunter, Paul J.J. van Geest, Bert Jan Lietaert Peerbolte. Consulted online on 27 September 2022 <>
First published online: 2018

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