Pious Protection

Quote from Letter 6,16 to Maurice, Augustus. September 595

We have learnt that he [John, a priest from Chalcedon] has suffered a greater injustice, in that when he declared and proved that he was a Catholic, it was not a case of guilt, but only a long lasting and uncertain accusation that wore him down.
For his accusers admitted with an open reply that they did not know the heresy of the Marcionites, the charge they brought against him. And those who should have been dismissed right at the beginning of trial were allowed to remain to accuse him, although untrustworth (...).
And so, with everything very carefully examined and dealt with, my decision and that of the holy council declared the above-mentioned priest, John, a true Catholic, as revealed by the grace of the heavenly Power (...).
I pray, therefore, that the pious protection of your Serenity orders that he be kept unharmed by any trouble, and not allow one confessing the Catholic faith to endure any disturbance, For not trusting someone who confesses truthfully is not purging heresy, but creating it. 

Cited from: The Letters of Gregory the Great, trans. John R.C. Martyn (Toronto: PIMS, 2004), II, 414