Clement of Alexandria Stromata Book V But he that entereth in by the door is the shepherd of the sheep. To him the porter openeth." Then the Lord says in explanation, "I am the door of the sheep."[162] A Treatise Against the Heretic Novatian by an Anonymous Bishop hes of poverty, whoever he may be, that, forsaking the Church of Christ, with his darkened reason does not shrink from being turned to those rash leaders of schisms and authors of dissension, whom John calls antichrists, whom the Evangelist likens to chaff, whom the Lord Christ characterizes as thieves and robbers, as He Himself declares in the Gospel, saying that "he who entereth not by the door into the sheep-fold, but goeth down by some other way, the same is a thief and a robber."[3]