According to [Holy Scripture and Orthodox Tradition], world history will culminate in an almost superhuman “Christian” figure, the false Messiah or Antichrist. He will be “Christian” in the sense that his whole function and his very being will center on Christ, Whom he will imitate in every respect possible, and he will be not merely the greatest enemy of Christ, but in order to deceive Christians will appear to be Christ, come to earth for a second time and ruling from the restored Temple in Jerusalem. "Let no one deceive you by any means, for that day shall not come except there come a falling away (apostasy) first, and that man of sin be revealed, the son of perdition, who opposeth and exalteth himself above all that is called God, or that is worshipped, so that he as God sitteth in the temple of God, showing himself that he is God… even him whose coming is after the working of Satan with all lying wonders, and with all deceivableness in them that perish … (II Thessalonians 2:3-4, 9-12). "
…Our Savior Himself has warned us: "Then if any man shall say unto you, Lo, here is the Christ, or there; believe it not. For there shall arise false Christs, and false prophets, and shall show signs and wonders, so as to lead astray, if possible, even the elect. Behold I have told you beforehand. If therefore they shall say unto you, Behold, he is in the wilderness, go not forth; Behold, he is in the inner chambers, believe it not. For as lightning cometh forth from the east, and is seen even unto the west, so shall the coming of the Son of Man be " (Matt. 24:23-27). The Second Coming of Christ will be unmistakable: it will be sudden, from heaven (Acts 1:11), and it will mark the end of this world. There can be no “preparation” for it - save only the Orthodox Christian preparation of repentance, spiritual life, and watchfulness. Those who are “preparing” for it in any other way, who say that he is anywhere “here” - especially “here” in the Temple of Jerusalem - or who preach that “Jesus is coming soon” without warning of the great deception that is to precede His Coming: are clearly the prophets of Antichrist, the false Christ who must come first and deceive the world