Council of Rome, 860 and 863

331. . . . Where have you ever read that your former rulers were present in synodal meetings, unless perchance in those in which (matters) concerning faith were discussed, which is universal, which is common to all, which pertains not only to the clergy but even to the laity and certainly to all Christians? . . . The greater the complaint which is brought to the judgment of a more powerful authority, so much the higher authority must be sought, until gradually it comes to this See, whose cause either from itself, as the merits of the matters demand, is changed for the better or is left without question to the will of God alone.

332. Furthermore if you have not heard us, it remains for you to be with us of necessity, such as our Lord Jesus Christ has commanded those to be considered, who disdained to hear the Church of God, especially since the privileges of the Roman Church, built on Blessed Peter by the word of Christ, deposited in the Church herself, observed in ancient times and celebrated by the sacred universal Synods, and venerated jointly by the entire Church, can by no means be diminished, by no means infringed upon, by no means changed; for the foundation which God has established, no human effort has the power to destroy and what God has determined, remains firm and strong. . . . Thus the privileges granted to this holy Church by Christ, not given by the Synod, but now only celebrated and venerated. . . .

333. Since, according to the canons, where there is a greater authority, the judgment of the inferiors must be brought to it to be annulled, or to be substantiated, certainly it is evident that the judgment of the Apostolic See, of whose authority there is none greater, is to be refused by no one. If indeed they wish the canon to be appealed to any part of the world; from it, however, no one may be permitted ¹ to appeal. . . . We do not deny that the opinion of this See can be changed for the better, when either something shall have been stealthily snatched from it, or by the very consideration of age or time, or by a dispensation of grave necessity, it shall have decided to regulate something. We beseech you, however, never question the judgment of the Church of God; that indeed bears no prejudgment on your power, since it begs eternal divinity for its own stability, and it beseeches in constant prayer for your well being and eternal salvation. Do not usurp the things that belong to it; do not wish to snatch away that which has been intrusted to it alone, knowing that without doubt every administrator of mundane affairs ought to be removed from sacred affairs, just as it is proper that no one from the group of clergy and those militant for God be implicated in any secular affairs. Finally, we are completely without knowledge of how those to whom it has been intrusted only to be in charge of human affairs presume to judge concerning those through whom divine affairs are ministered. These