According to the apostolic teaching and the doctrine of the Gospel, let us believe the one deity of the Father, the Son and the Holy Spirit, in equally majesty and in a holy Trinity. We authorize the followers of this law to assume the title of Catholic Christians; but as for the others, since, in our judgment, they are foolish madmen, we decree that they shall be branded with the ignominious name of heretics … They will suffer in the first place the chastisement of the divine condemnation, and in the second the punishment which our authority, in accordance with the will of Heaven, shall decide to inflict.
(16:1), originally published in full in 438, as quoted in Documents of the Christian Church, p. 24