Augustine of Hippo : For this reason, overseers or rulers are set over the churches to reprimand sin, not to spare it. Nor is a person fully free from blame who is not in authority but who notices in those persons he meets in social life many faults he should censure and admonish. He is blameworthy if he fails to do this out of fear of hurting feelings or of losing such things as he may rightfully enjoy in his life but to which he is unduly attached. — City of God 1.9 Origen of Alexandria : And: "From the hand of the watchman I will require your blood." What blood does God demand from the hand of the watchman, if not that of which the sinner is deprived? So the heart of the foolish one is destroyed, according to the saying: "Listen to Me, you who have lost heart!" — because the sinner is deprived of the blood and vital force of the soul. — DIALOGUE WITH HERACLIDES