7 You say, indeed, that the scruple into which you have fallen ought to be taken from your mind. You have fallen into it, but it was by your irreligious credulity. You have fallen into it, but it was by your own sacrilegious disposition and will in easily hearkening to unchaste, to impious, to unspeakable things against your brother. against a priest, and in willingly believing them in defending other men's falsehoods, as if they were your own and your private property; and in not remembering that it is written, “Hedge your ears with thorns, and hearken not to a wicked tongue;” and again: “A wicked doer gives heed to the tongue of the unjust; but a righteous man regards not lying lips.” Wherefore have not the martyrs fallen into this scruple, full of the Holy Ghost, and already by their passion near to the presence of God and of His Christ; martyrs who, from their dungeon, directed letters to Cyprian the bishop, acknowledging the priest of God, and bearing witness to him?
Wherefore have not so many bishops, my colleagues, fallen into this scruple, who either, when they departed from the midst of us, were proscribed, or being taken were cast into prison and were in chains; or who, sent away into exile, have gone by an illustrious road to the Lord; or who in some places, condemned to death, have received heavenly crowns from the glorification of the Lord? Wherefore have not they fallen into this scruple, from among that people of ours which is with us, and is by God's condescension committed to us— so many confessors who have been put to the question and tortured, and glorious by the memory of illustrious wounds and scars; so many chaste virgins, so many praiseworthy widows; finally, all the churches throughout the whole world who are associated with us in the bond of unity?
Unless all these, who are in communion with me, as you have written, are polluted with the pollution of my lips, and have lost the hope of eternal life by the contagion of my communion. Pupianus alone, sound, inviolate, holy, modest, who would not associate himself with us, shall dwell alone in paradise and in the kingdom of heaven.
Source: The Epistles of Cyprian (New Advent)