67) contained a passage stating that Gabriel had taught at the school of Mahoze in Beth Aramaye and the future patriarchs Ḥenanishoʿ I (686–700) and Aba II (742–753) were among his students.
[1] Gabriel's writings do not survive, but he is quoted frequently in biblical commentaries of the Church of the East from the 8th century onwards as a recognized authority on both the Old and New Testaments.
He is usually cited as Gabriel Qaṭraya with the title rabban (teacher), but the Gannat Bussāme, quoting Ṣharbokht bar Msargis, uses both his surnames.
As Gabriel Arya, he has an entry in the catalogue of Syriac writers created by ʿAbdishoʿ of Nisibis around 1300.
According to ʿAbdishoʿ, he wrote a commentary on select passages from the Bible, called Salges mashlmanuta d-ṣurta, the "tradition (or transmission) of the scriptural text".