False Doctrine of "Secret Rapture" = another "2nd Advent"

....even as there shall be false teachers among you, who privily shall bring in damnable heresies,...

2 Peter 2:1

“The Rapture doctrine, which was the invention of the Plymouth Brethren led by John Nelson Darby (1800-1882), has today been adopted by most Baptist, Pentecostals, Assemblies of God, and a variety of other fundamentalist sects. The idea that Jesus Christ will return for His true Church just before the

beginning of the Great Tribulation in a secret gathering or “catching away” was an important part of Darby’s teaching. The movement in which this teaching began originated in small groups in England and Ireland about 1828 and by 1831 was part of the official teaching of the Plymouth Brethren. By 1860 the “rapture” had made its way to the United States.
Today, prophecy pundits and “end-time” revivalists preach the Rapture as if it were established dogma from the time of Christ until the present. The truth is that the first historical reference to the Rapture doctrine comes from the Plymouth Brethren. Not only is the Rapture not found in the teachings of the Church, but even “end-time” heretics throughout the centuries never dreamed of proposing such a novel idea. For example, the 4th century Montanists, who preached both pre-millennialism and that they knew when Christ would return, never ventured so far as to create another 2nd coming of the Lord in a secret rapture." ETE