I. He sends envoys but deprecates any fresh discussion of the Faith.
Rejoicing that it has been proved to me by many clear proofs with what earnestness you consult the interests of the universal Church, I have not delayed to obey your Majesty's commands on the first opportunity, by dispatching Domitian and Geminian my brothers and fellow bishops, who in furtherance of my earnest prayers, shall entreat you for the peaceful acceptance of the gospel-teaching and obtain the liberty of the Faith in which through the instruction of the Holy Spirit you yourself are so conspicuously eminent, now that the enemies of Christ are driven far away, who even if they had wished to conceal their madness, could not lie hidden, because the holy simplicity of the Lord's flock is very different from the pretences of beasts who hide themselves in sheeps' clothing, nor can they creep in by hypocrisy now that their exceeding madness has revealed them.
Recognize, therefore, august and venerable Emperor, how that you are called by Divine providence to the guardianship of the whole world, and understand what aid you owe to your Mother, the Church, who makes special boast of you. Disputes that are ended must not be allowed to rise with renewed vigour against the triumphs of the Almighty's right hand, especially when this can in no way be allowed to heretics, whose attempts have long ago been condemned and the labours of the faithful have a just claim to this result, that all the fullness of the Church shall remain secure in the completeness of her unity, and that nothing whatever of what has been well laid down shall be reconsidered, because, after constitutions have been legitimately framed under Divine guidance, to wish still to wrangle is the sign not of a peace-making but of a rebellious spirit, as says the Apostle, “for to strive with words is profitable for nothing, but for the subverting of them that hear.”
Source: Letters (New Advent)