CHESTERTONRULES;5046988 said:
Wishful thinking from a protestant perspective.
Based on other writings from Gregory, I think we can assume he is referring to Bishops
other than the pope:
EPISTLE XLI.
TO CASTORIUS,
BISHOP.
Gregory to Castorius, Bishop of Ariminum (Rimini).
We therefore interdict in the name of our Lord Jesus Christ, and forbid by the authority of the blessed Peter, Prince of the apostles, in whose stead we preside over this Roman Church, that any bishop or secular person hereafter presume in any way to devise occasions of interfering with regard to the revenues, property, or writings of monasteries, or of the cells or vills thereto appertaining, or have recourse to any tricks or exactions: but, if any case should by chance arise as to land disputed between their churches and any monasteries, and it cannot be arranged amicably, let it be terminated without intentional delay before selected abbots and other fathers who fear God, sworn upon the most holy Gospels.
Epistle XLIII.
To Eulogius and Anastasius,
Bishops.
Gregory to Eulogius, Bishop of Alexandria, and Anastasius, Bishop of Antioch.
Now eight years ago, in the time of my predecessor of holy memory Pelagius, our brother and fellow-bishop John in the city of Constantinople, seeking occasion from another cause, held a synod in which he attempted to call himself Universal Bishop. Which as soon as my said predecessor knew,** he despatched letters annulling by the authority of the holy apostle Peter the acts of the said synod**; of which letters I have taken care to send copies to your Holiness.
EPISTLE VII.
TO ANASTASIUS,
PATRIARCH OF ANTIOCH.
Further, I apprize you that I have requested our most serene lords with all possible urgency** to allow you to come to the threshold of Peter, the prince of the apostles, with your dignity restored to you,** and to live here with me so long as it may please God; to the end that, as long as I am accounted worthy of seeing you, we may relieve the weariness of our pilgrimage by speaking to each other of the heavenly country.
EPISTLE XXXVI.
TO PETER THE SUBDEACON.
Further, since it has been customary for bishops to assemble here for the anniversary of the pontiff, forbid their coming for the day of my ordination, since foolish and vain superfluity delights me not. But if they must needs assemble, let them come for the anniversary of Peter, the prince of the apostles, to render thanks to him by whose bounty they are pastors.
EPISTLE VI.
To JOHN,
BISHOP.
Gregory to John, bishop of Prima Justiniana.
If, then, these things which have been brought before us have the rampart of truth, inasmuch as we consider that, taking advantage of your vicariate jurisdiction under us, you are presuming unjustly, we will, with the help of Christ, decree further concerning these things, according to the result of our deliberations. But as regards the present, by the authority of the blessed Peter, Prince of the apostles, we decree that, the decrees of thy judgment being first annulled and made of none effect, thou be deprived of holy communion for the space of thirty days, so as to implore pardon of our God for so great transgression with the utmost penitence and tears.
EPISTLE XXXIII.
TO DYNAMIUS,
PATRICIAN.
Gregory to Dynamius, Patrician of Gaul.
He who administers faithfully what is other’s shows how well he dispenses what is his own. And this your Glory makes manifest to us in that, intent on your annual offering, you have rendered the blessed Peter, Prince of the apostles, the fruits of his revenues. In paying him what is his faithfully, you have made these gifts to him your own.
EPISTLE LVII.
From John,
Bishop of Ravenna
to Pope Gregory.
And how should I be so daring as to presume to oppose that most holy see, which transmits its laws to the universal Church, for maintaining whose authority, as God knows, I have seriously excited the ill-will of many enemies against myself?
EPISTLE LXVIII.
TO EUSEBIUS OF THESSALONICA.
Gregory to Eusebius of Thessalonica, Urbicus of Dyrrachium, Andrew of Nicopolis, John of Corinth, John of Prima Justiniana, John of Crete, John of Larissa and Scodra, and many other bishops.
Wherefore we once more admonish you before God and His Saints, that you observe all these things with the utmost attention, and with the entire bent of your minds.
For if any one, as we do not believe will be the case, should disregard in any part this present writing, let him know that he is segregated from the peace of the blessed Peter, the Prince of the Apostles. Let, then, your Fraternity so act that when the Shepherd of shepherds comes in judgment, you may not be found guilty with respect to the place of government which you have received.
EPISTLE L
To Eulogius,
Patriarch of Alexandria.
Gregory to Eulogius, etc.
The bearers of these presents, coming to Sicily, were converted from the error of the Monophysites, and united themselves to the holy universal Church. Having proceeded to the church of the blessed Peter, Prince of the apostles, they requested of me that I should commend them by letter to your Blessedness, to the end that they may not now be allowed to suffer any wrong from the heretics that are near them.
More here:
globalserve.net/~bumblebee/ecclesia/gregory.htm