Career
He was Regius Professor of Divinity at the University of Dublin from 1888. Gwynn produced editions of the five books missing from the traditional canon of the New Testament of the Aramaic New Testament of the Peshitta: 2 John, 3 John, 2 Peter, Jude in 1893, and Revelation in 1897. He worked from 20 manuscripts for the epistles, but had to rely on only one, the Crawford Aramaic New Testament manuscript, for Revelation.
These were later added to the Gospels and Epistles of Philip East. Pusey and George Gwilliam to produce the 1905 United Bible Societies standard edition of the Peshitta.
He spent 20 years preparing the manuscript of The Book of Armagh: Liber Ardmachanus for publication (1903).
