“There can be no question but that Christianity was originally a Jewish promotion, and it is noteworthy that the Christians who try to make their cult respectable in the Third Century claim that they repudiate the Jews. One of the earliest to do this was Tertullian, a Carthaginian shyster, whose Apologeticum, a defense of Christianity, was written at the very beginning of the Third Century. He asserts that Christianity is not a conspiracy of revolutionaries and degenerates, as was commonly believed, and claims that it is an association of loving brothers who have preserved the faith that the Jews forsook – which has been the common story ever since. Our holy men salvage Tertullian by claiming that he was "orthodox" in his early writings, but then, alas! became a Montanist heretic, poor fellow. Tertullian is the author of the famous dictum that he believes the impossible because it is absurd (credo quia absurdum), so he is naturally dear to the heart of the pious. How much Jerome and other saints have tampered with the facts to make Tertullian seem "orthodox" in his early works has been most fully shown by Timothy Barnes in his Tertullian (Oxford, 1971), but even he spends a hundred pages pawing over chronological difficulties that can be reconciled by what seems to me the simple and obvious solution: Tertullian, who was evidently a pettifogging lawyer before he got into the Gospel-business, had sense enough to eliminate from his brief for the Christians facts that would have displeased the pagans whom he was trying to convince that Christians represented no threat to civilized society; he accordingly concealed in his apologetic works the peculiar doctrines of the Christian sect to which he had been originally "converted," but he naturally expounded those doctrines in writings intended, not for the eyes of wicked pagans, but for other brands of Christians, whom he wished to convert to his own sect, which was that of Montanus, a very Holy Prophet (divinely inspired, of course) who was a Phrygian, not a Jew, and who had learned from chats with God that since the Jews had muffed their big opportunity at the time of the Crucifixion, Jesus, when he returned next year or the year after that, was going to set up his New Jerusalem in Phrygia after he had raised hell with the pagans and tormented and butchered them in all of the delightful ways so lovingly described in the Apocalypse, the Hymn of Hate that still soothes the souls of "fundamentalist" Christians today. If, in his Apologeticum and similar works, Tertullian had told the stupid pagans that they were going to be tortured and exterminated in a year or two, they might have doubted that Christians were the innocent little lambs that Tertullian claimed they were.”

The Jewish Strategy, Chapter 12 "Christianity"
1990s, The Jewish Strategy (2001)