Gregory to Marinianus, Bishop of Ravenna.
We find from the information given in your Fraternity’s letter that the sons of the Church of Cornelium are continually supplicating you to consecrate a bishop for them in place of their former bishop who has lapsed, and that you are in doubt as to what should be done in the matter, and await our plain command. Inasmuch, then, as no sort of reason allows any one who has departed criminally to be recalled to the place from which he has lapsed, and as the ordinances of the sacred canons allow not a Church to be without a bishop beyond three months, lest (which God forbid) the ancient foe should lie in wait to tear the Lord’s flock, your Fraternity ought to comply with their entreaty, and ordain a bishop in the place of the lapsed one. For, seeing that you ought to have admonished them to this thing by your exhortations before they asked you, you can have no excuse for refusing them when they demand it of you, since a Church of God ought not to remain long widowed of a bishop of its own.
Reproduced in full. Translation: Nicene and Post-Nicene Fathers, series 2, vol. 12 (Schaff and Wace, 1895), public domain (Public domain).