Origen

“ But if any one going beyond the things about the world and this age were to commit sin, even if it were trifling, he could not longer reasonably have forgiveness of sins; for forgiveness extends to the things here, and in relation to the sins committed here, whether the forgiveness comes late or soon; but there is no forgiveness, not even to a brother, who has sinned beyond the seven and seventy times. ”

“ If any one has already become a friend of Jesus so as to be taught by His spirit which illumines the reason of him who has advanced so far according to his desert, he might know the true meaning, therefore, in regard to these things, and such as Jesus Himself would have clearly expounded it ”

“ But you might say that he who has sinned in such wise, whether as against Peter his brother, or as against Peter, against whom the gates of Hades do not prevail, is by sins of this kind in the smaller number of the sin, but according to sins still worse is in the number which has no forgiveness of sins. ”