They will cleave to the name of a dead man, thinking they will become pure. But they will become greatly defiled and they will fall into the name of error and into the hand of evil, cunning man and a manifold dogma, and they will be ruled heretically. For some of them will blaspheme the truth and proclaim evil teaching. And they will say evil things against each other… But many others, who oppose the truth and are the messengers of error, will set up their error and their law against these pure thoughts of mine, as looking out from one perspective, thinking that good and evil are from one source. They do business in my word… And there shall be others of those who are outside our number who name themselves bishop and also deacons, as if they have received their authority from God. They bend themselves under the judgement of the leaders. These people are dry canals.
— The Apocalypse of Peter, NHVII,3