ABSTRACT
There were many factors involved in the formulation and defence of Byzantine Orthodoxy. Many of them were political and sociological, but these were mainly concerned with the pressures on the process of the formulation of Orthodoxy, not with the actual formulation itself. The principal authority was the Holy Scriptures themselves, but these were rarely directly concerned with the issues at stake in the sixth century; if they were to be brought to bear on such issues, they needed interpretation. Some passages of Gregory of Nazianzus's homilies were quoted in the context of the 'second Origenist controversy'. In one fourteenth-century manuscript and in the edition of S. N. Schoinas, installing life is replaced by installing breath. Finally, in the context of Gregory's use in a controversial situation, it should be noted that Gregory has been quoted by some other authors of the sixth century whose works are known only through Photius's Bibliotheca.
