As I work through Justinian’s Against the Monophysites (trans. K. P. Wesche), I am interested in his approach to texts. Justinian lived in the age of the florilegium, the catena, the anthology. If you wanted to prove that tradition and historic theology were on your side, you furnished a chain of texts from authorities accepted by your own side and by your opponents to demonstrate the rightness of your position. This is something Leo the Great did in Ep. 165 to Emperor Leo, to which he appended a florilegium of patristic texts that he believed supported the argument for two-nature Christology.
Justinian seems to be aware that this tactic does not work anymore. In particular, it cannot work in debate with ‘Monophysites’, or, to be PC, ‘Miaphysites’.* Up to Leo, they and the Chalcedonians acknowledge the same body of ‘Fathers’ for interpreting Scripture and reasoning out theology. Both groups accept the ‘ecumenical’ councils of Nicaea, Constantinople, and Ephesus. Both groups accept Athanasius, the Cappadocian Fathers, and Cyril of Alexandria as touchstones of historic orthodoxy in matters of the Trinity and Christology. They reject ‘Arianism’ (in all its pluriform realities), Apollinaris, Nestorius, and, in fact, Eutyches.
Each group, then, can wield its own set of quotations from the Fathers to prove its own case. It is not difficult to find Miaphysite quotations of Cyril, and two-nature quotations from the Cappadocians can be adduced on the other side.
Therefore, in this treatise, besides seeking to argue his case using logic and Scripture — both of which, like the Fathers, the Miaphysites use — Justinian devotes most of his time to exegeting the texts of the Fathers held in common by both sides. He does not simply say, ‘Look, this text from Cyril teaches two natures,’ but, rather, explains how it does so.
I do not know if it convinced his recipients. Certainly, the intensive activity of so-called ‘Neo-Chalcedonians’ during his reign, including the long disputation that ended in 536 and the condemnation of the ‘Three Chapters’, as well as various individual theologians, failed to reconcile the Miaphysites at large, who set up their own parallel hierarchy to that of the imperially-sponsored church that accepted Chalcedon.
Nonetheless, the tactics seem to have changed somewhat in the century since Leo the Great. It is noteworthy, I think.
*The word miaphysite makes no sense, since it is etymologically impossible and denotatively means the same thing as monophysite. Mia is the feminine form of the Greek word for one, and not a prefix. Mono- is the Greek prefix derived from the word for one. However, since there are people of this belief system still alive, and they prefer miaphysite, I use it but in protest against Sebastian Brock (a dangerous thing to do; I promise never to argue with him about Syriac ;)).