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Christ rules and sits at the right-hand of God in heaven -- as I pointed out above -- Eusebius wrote that

We have understood that at this time Cerinthus, the author of another heresy, made his appearance. Caius, whose words we quoted above, in the Disputation which is ascribed to him, writes as follows concerning this man:

But Cerinthus also, by means of revelations which he pretends were written by a great apostle, brings before us marvelous things which he falsely claims were shown him by angels; and he says that after the resurrection the kingdom of Christ will be set up on earth, and that the flesh dwelling in Jerusalem will again be subject to desires and pleasures. And being an enemy of the Scriptures of God, he asserts, with the purpose of deceiving men, that there is to be a period of a thousand years for marriage festivals.

And Dionysius, who was bishop of the parish of Alexandria in our day, in the second book of his work On the Promises, where he says some things concerning the Apocalypse of John which he draws from tradition, mentions this same man in the following words:

But (they say that) Cerinthus, who founded the sect which was called, after him, the Cerinthian, desiring reputable authority for his fiction, prefixed the name. For the doctrine which he taught was this: that the kingdom of Christ will be an earthly one.

And as he was himself devoted to the pleasures of the body and altogether sensual in his nature, he dreamed that that kingdom would consist in those things which he desired, namely, in the delights of the belly and of sexual passion, that is to say, in eating and drinking and marrying, and in festivals and sacrifices and the slaying of victims, under the guise of which he thought he could indulge his appetites with a better grace.

These are the words of Dionysius. But Irenæus, in the first book of his work Against Heresies, gives some more abominable false doctrines of the same man, and in the third book relates a story which deserves to be recorded. He says, on the authority of Polycarp, that the apostle John once entered a bath to bathe; but, learning that Cerinthus was within, he sprang from the place and rushed out of the door, for he could not bear to remain under the same roof with him. And he advised those that were with him to do the same, saying, Let us flee, lest the bath fall; for Cerinthus, the enemy of the truth, is within.

From NewAdvent -

During the fourth and fifth centuries the tendency to exclude the Apocalypse from the list of sacred books continued to increase in the Syro-Palestinian churches. Eusebius expresses no definite opinion. He contents himself with the statement: "The Apocalypse is by some accepted among the canonical books but by others rejected"

St. Cyril of Jerusalem does not name it among the canonical books (Catechesis IV.33-36); nor does it occur on the list of the Synod of Laodicea, or on that of Gregory of Nazianzus. Perhaps the most telling argument against the apostolic authorship of the book is its omission from the Peshito, the Syrian Vulgate.