Definition of the faith The sacred and great and universal synod by God's grace and by decree of your most religious and Christ-loving emperors Valentinian Augustus and Marcian Augustus assembled in Chalcedon, metropolis of the province of Bithynia, in the shrine of the saintly and triumphant martyr Euphemia, issues the following decrees. In establishing his disciples in the knowledge of the faith, our lord and saviour Christ said: "My peace I give you, my peace I leave to you"', so that no one should disagree with his neighbour regarding religious doctrines but that the proclamation of the truth would be...