early 9th century), also called ʿAbdishoʿ bar Bahrīz,[b] was a bishop and scholar of the Church of the East, famous for his translations from Syriac into Arabic.
[1][2] According to al-Jāḥiz, he had ambitions of becoming catholicos, but the Muslim writer comments mockingly that he lacked the requisite height, voice or lengthy beard.
He translated Nicomachus of Gerasa's Introduction to Arithmetic from Syriac into Arabic for Ṭāhir ibn al-Ḥusayn.
[2] One apologetic treatise by Ibn Bahrīz is known, entitled Maqāla fī l-tawḥīd wa-l-tathlīth ('Treatise on the Unity and Trinity').
[4] Ibn Bahrīz is probably the "ʿAbdīshūʿ, the Nestorian mutrān [metropolitan]" who took part in a public debate or discussion of different Christologies in the 820s before an unnamed Muslim vizier.
There is a short record of this event in Arabic by an anonymous author, probably a Jacobite, which has been titled A Christological Discussion by its editor.