Letters

To the most holy and blessed father and fellow-minister Leo, Flavian greeting in the Lord.

Nothing, as you know, most beloved of God, is more precious to priests than piety and the right dividing of the word of truth. For all our hope and safety, and the recompense of promised good depend thereon. For this reason we must take all pains about the true Faith, and those things which have been set forth and decreed by the holy Fathers, that always, and in all circumstances, they may be kept and guarded whole and uninjured. And so it was necessary on the present occasion for us, who see the orthodox Faith suffering harm, and the heresy of Apollinaris and Valentinus being revived by the wicked monk Eutyches, not to overlook it, but publicly to disclose it for the people's safety. For this man: this Eutyches, keeping his diseased and sickly opinion hid within him, has dared to attack our gentleness, and unblushingly and shamelessly to instil his own blasphemy into many minds: saying that before the Incarnation indeed, our Saviour Jesus Christ had two natures, Godhead and manhood: but that after the union they became one nature; not knowing what he says, or on what he is speaking so decidedly. For even the union of the two natures that came together in Christ did not, as your piety knows, confuse their properties in the process: but the properties of the two natures remain entire even in the union. And he added another blasphemy also, saying that the Lord's body which sprang from Mary was not of our substance, nor of human matter: but, though he calls it human, he refuses to say it was consubstantial with us or with her who bare him, according to the flesh.