John Chrysostom was exiled from Constantinople at the instigation of the empress Eudoxia, assisted by Severian of Gabala. But the people rioted before he had gone far, and Chrysostom was recalled. An armistice was patched up between the two men.
In Migne there is a little group of three sermons, only in Latin, all headed De Pace — On Peace. The first two are by Chrysostom, and refer to “our brother Severian”. The third is by Severian himself in reply.
Quasten tells us that the latter is only fragments, and that the full Greek text only appeared in print at the hands of Papadopoulos-Kerameus, St. Petersburg in 1891, in vol. 1 of Analekta hierosolumitikes stakuologias, p.15-26. My heart sank as I saw this, and contemplated how on earth I would ever even locate such a volume.
Slightly hopelessly I entered his name in Google; and a list on Archive.org came up. And here it is, courtesy of the good and generous people at Harvard Library, who have given freely of their store to the world! There’s also a catalogue of manuscripts in that library.
Looking at the PDF of vol. 1, after the prologue in Greek, sure enough, on p. 15 (Roman numerals; p.50 of the PDF), is the sermon peri eirenes, taken from ms. Saba 32, fol. 130a-135b. Migne’s Latin text is printed in parallel where it exists; no translation where it does not.
Anyone fancy translating it into English, for money?
On p.556 of the PDF is a list of contents. Any care to give us an idea of that lot in English? I can see it starts with Andrew of Crete, then Severian, then Paulinus’ Life of Ambrose…