Ephraem the Syrian: Early Christians Believed Pre-Tribulation Rapture.
It's Not a New Teaching.
306 A.D. to 373 A.D
When therefore the end of the world comes, there arise diverse wars, commotions on all sides, horrible earthquakes, perturbations of nations, tempests throughout the lands, plagues, famine, drought throughout the thoroughfares, great danger throughout the sea and dry land, constant persecutions, slaughters and massacres everywhere ....
"6. When therefore the end of the world comes, that abominable, lying and murderous one is born from the tribe of Dan. He is conceived from the seed of a man and from a most vile virgin, mixed with an evil or worthless spirit ....
But when the time of the abomination of his desolation begins to approach, having been made legal, he takes the empire.... Therefore, when he receives the kingdom, he orders the temple of God to be rebuilt for himself, which is in Jerusalem; who, after coming into it, he shall sit as God and order that he be adored by all nations ... then all people from everywhere shall flock together to him at the city of Jerusalem, and the holy city shall be trampled on by the nations for forty-two months just as the holy apostle says in the Apocalypse, which become three and a half years, 1260 days.
"8. In these three years and a half the heaven shall suspend its dew; because there will be no rain upon the earth and there will be a great tribulation, as there has not been, since people began to be upon the earth and no one is able to sell or to buy of the grain of the fall harvest, unless he is one who has the serpentine sign on the forehead or the hand
And when the three and a half years have been completed, the time of the Antichrist, through which he will have seduced the world, after the resurrection of the two prophets, in the hour which the world does not know, and on the day which the enemy or son of perdition does not know, will come the sign of the Son of Man, and coming forward the Lord shall appear with great power and much majesty, with the sign of the word of salvation going before him, and also even with all the powers of the heavens with the whole chorus of the saints.... Then Christ shall come and the enemy shall be thrown into confusion, and the Lord shall destroy him by the Spirit of his mouth. And he shall be bound and shall be plunged into the abyss of everlasting fire alive with his father Satan; and all people, who do his wishes, shall perish with him forever; but the righteous ones shall inherit everlasting life with the Lord for ever and ever." http://www.arewelivinginthelastdays.com/com/ephraem.ht
It's Not a New Teaching.
306 A.D. to 373 A.D
When therefore the end of the world comes, there arise diverse wars, commotions on all sides, horrible earthquakes, perturbations of nations, tempests throughout the lands, plagues, famine, drought throughout the thoroughfares, great danger throughout the sea and dry land, constant persecutions, slaughters and massacres everywhere ....
"6. When therefore the end of the world comes, that abominable, lying and murderous one is born from the tribe of Dan. He is conceived from the seed of a man and from a most vile virgin, mixed with an evil or worthless spirit ....
But when the time of the abomination of his desolation begins to approach, having been made legal, he takes the empire.... Therefore, when he receives the kingdom, he orders the temple of God to be rebuilt for himself, which is in Jerusalem; who, after coming into it, he shall sit as God and order that he be adored by all nations ... then all people from everywhere shall flock together to him at the city of Jerusalem, and the holy city shall be trampled on by the nations for forty-two months just as the holy apostle says in the Apocalypse, which become three and a half years, 1260 days.
"8. In these three years and a half the heaven shall suspend its dew; because there will be no rain upon the earth and there will be a great tribulation, as there has not been, since people began to be upon the earth and no one is able to sell or to buy of the grain of the fall harvest, unless he is one who has the serpentine sign on the forehead or the hand
And when the three and a half years have been completed, the time of the Antichrist, through which he will have seduced the world, after the resurrection of the two prophets, in the hour which the world does not know, and on the day which the enemy or son of perdition does not know, will come the sign of the Son of Man, and coming forward the Lord shall appear with great power and much majesty, with the sign of the word of salvation going before him, and also even with all the powers of the heavens with the whole chorus of the saints.... Then Christ shall come and the enemy shall be thrown into confusion, and the Lord shall destroy him by the Spirit of his mouth. And he shall be bound and shall be plunged into the abyss of everlasting fire alive with his father Satan; and all people, who do his wishes, shall perish with him forever; but the righteous ones shall inherit everlasting life with the Lord for ever and ever." http://www.arewelivinginthelastdays.com/com/ephraem.ht