Some however refer this to the time of the Jewish captivity, where many, declaring themselves to be Christs, drew after them crowds of deluded persons; but during the siege of the city there was no Christian to whom the Divine exhortation, not to follow false teachers, could apply. Wherefore it is better to understand it of heretics, who, coming to oppose the Church, pretended to be Christs; the first of whom was Simon Magus, but that last one, greater than the rest, is Antichrist.
It goes on: “But take ye heed: behold, I have foretold you all things.”
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).