Rabbula (Latin: Rabula) was a bishop of Edessa from 411 to August 435 AD, noteworthy for his opposition to the views of Theodore of Mopsuestia and Nestorius. However, his successor Ibas, who was in charge of the school of Edessa, reversed the official stance of that bishopric. Rabbula is not to be confused with the otherwise unknown scribe of the 6th century Rabbula Gospels.
The Life of Rabbula is a biographical Syriac text of Rabbula's life from the beginning his birth to his life achievements and ends with his death. The text was first translated from Syriac into English and published by J. J. Overbeck in his S. Ephraemi Syri Rabulae Episcopi Edesseni Balaei Aliorumque opera selecta (1865). The Syriac parchment was found stored in the British Museum and is dated to the sixth century AD.
He was a native of Qinnasrin, ancient Chalcis ad Bellum, a town some few miles south of Aleppo and the seat of a bishopric. His father was a pagan priest, and though his mother was a devoted Christian he remained a pagan until some time after his marriage. During a journey to his country estates he was converted to Christianity partly through coming in contact with a case of miraculous healing and partly through the teaching and influence of Eusebius, bishop of Kenneschrin, and Acacius, bishop of Aleppo.
With all the energy of his fiery nature he threw himself into the practice of Christian asceticism, sold all his possessions, and separated from his wife and kinspeople. He resided for some time in a monastery, and then passed to a life of greater hardship as a solitary hermit. On the death of Diogenes, bishop of Edessa, in the year 411-412 Rabbula was chosen his successor, and at once accepted the position offered him, without any of the customary show of reluctance.