Firmilian of Caesarea, Letter to Cyprian 2
Gathering, peace, and harmony bring the highest delight not only to faithful people who know the truth, but also to the heavenly Angels themselves; the divine word says there is joy among them over one sinner who repents and returns to the bond of unity (Luke 15:7). That would never be said of Angels who dwell in heaven unless they, too, are joined to us and rejoice in our gathering. Conversely, they are surely grieved when they see divided minds and split wills, as though those people no longer call on the one same God together, but, separated and divided from one another, can no longer share conversation or common speech. We can, however, give thanks to Stephen for this: through his inhumanity it has come about that we might test your faith and wisdom. Yet even if we have received this benefit of gratitude because of Stephen, that does not mean Stephen has performed a deed worthy of thanks. Nor can Judas be considered worthy, as if he himself supplied the cause of such great goods, so that through him the world and the nations were set free by the Lord's passion, on account of his perfidy and the betrayal by which he acted wickedly toward the Savior.
Latin
Adunatio enim et pax et concordia, non solum hominibus fidelibus et cognoscentibus veritatem, sed et Angelis ipsis coelestibus voluptatem maximam praestat, quibus dicit sermo divinus esse gaudium in uno peccatore poenitentiam agente et ad unitatis vinculum revertente. Quod utique non diceretur de Angelis conversationem in coelis habentibus, nisi ipsi quoque essent nobis adunati, qui nostra adunatione laetantur; sicut e contrario utique contristantur, quando vident diversas quorumdam mentes et scissas voluntates, quasi non tantum unum et eumdem Deum simul invocent, sed separatis et divisis ab invicem nec confabulatio jam possit esse aut sermo communis. Nisi quod nos gratiam referre Stephano in isto possumus quod per illius inhumanitatem nunc effectum sit ut fidei et sapientiae vestrae experimentum caperemus. Sed non enim si nos propter Stephanum hanc beneficii gratiam cepimus, statim Stephanus beneficio gratia digna commisit. Neque enim et Judas perfidia sua et proditione, qua scelerate circa Salvatorem operatus est, dignus videri potest quasi causam bonorum tantorum ipse praestiterit ut per illum mundus et gentium populus passione Domini liberaretur.