Synod of Chalcedon

Leo, the bishop of the city of Rome, to the holy Synod, assembled at Nicæa. I had indeed prayed, dearly beloved, on behalf of my dear colleagues that all the Lord's priests would persist in united devotion to the Catholic Faith, and that no one would be misled by favour or fear of secular powers into departure from the way of Truth; but because ...

Hormisdas to John, bishop of Nicopolis, and the Synod.