And Gregory, referring just before to the pride of this one man, who had the audacity to put in a letter to the Pope himself, a superscription in which, according to the Pope's judgment, he claimed to be sole bishop in the Church, used words which will serve to indicate what Gregory conceived his own authority to be, as well as the source on which it rested: "I beseech you, by Almighty God, not to permit your Majesty's time to be polluted by one man's arrogance. Do not in any way give your consent to so perverse an appellation. By no means let your Majesty in such a cause despise me the individual, for the sins of Gregory are indeed so great as to deserve such treatment, but there are no sins of the Apostle Peter that he should deserve in your time such treatment. Wherefore, I again and again entreat you, by Almighty God, that as former princes, your progenitors, have sought the favour of the holy Apostle Peter, so you also would seek it and preserve it for yourselves. Nor let his honour be in your mind the least diminished by our sins, his unworthy servant: that he may be now your helper in all things, and hereafter be able to pardon your sins." I quote the following passage from a letter[188] to the emperor Mauritius himself, not only because Gregory alleges as the root of his own authority the three great words spoken by our Lord to Peter, but for the description of the times in which he lived, and the vast importance of union between the two great powers. This, he says, if faithfully maintained on both sides, would have protected them from such calamities.