He presents him as an associate of the Zoroastrian convert George of Izla and as a martyr because he died in exile.
[2] On account of his reputation for holiness, Patriarch Ishoʿyahb I appointed him bishop of Kashkar.
[2] He came into conflict with the director of the school, Henana of Adiabene, whose works he condemned as contrary to the exegesis of Theodore of Mopsuestia.
Receiving no support from the Patriarch Sabrishoʿ I, Gregory left Nisibis in voluntary exile.
[1] For his exile, Gregory and his followers gave away their wealth, keeping only those things that were necessary for the performance of the liturgy.
The historian Philip Wood agrees that Gregory "experienced a dramatic loss of face" at this time, and regards the hagiographic tradition as mispresenting the popularity of Henana, Sabrishoʿ and what was probably a more moderate faction.