The Ecclesiastical History Of Theodoret by Theodoret
Chapter XXVIII.--Of John's boldness for God.
When the great John had received the tiller of the Church, he boldly convicted certain wrong doers, made seasonable exhortations to the emperor and empress, and admonished the clergy to live according to the laws laid down. Transgressors against these laws he forbade to approach the churches, urging that they who shewed no desire to live the life of true priests ought not to enjoy priestly honour. He acted with this care for the church not only in Constantinople, but throughout the whole of Thrace, which is divided into six provinces, and likewise of Asia, which is governed by eleven governors. Pontica too, which has a like number of rulers with Asia, was happily brought by him under the same discipline.