http://www.sullivan-county.com/news/cathouse/darby.htm The doctrine of a secret rapture was first conceived by John Nelson Darby of the Plymouth Brethren in 1827. Darby, known as the father of dispensationalism, invented the doctrine claiming there were not one, but two "second comings." This teaching was immediately challenged as unbiblical by other members of the Brethren. Samuel P. Tregelles, a noted biblical scholar, rejected Darby's new interpretation as the "height of speculative nonsense." So tenuous was Darby's rapture theory that he had lingering doubts about it as late as 1843, and possibly 1845. Another member of the Plymouth Brethren, B.W. Newton, disputed Darby's new doctrine claiming such a conclusion was only possible if one declared certain passages to be "renounced as not properly ours."
Sandeen writes, "this is precisely what Darby was prepared to do. Too traditional to admit that biblical authors might have contradicted each other, and too rationalist to admit that the prophetic maze defied penetration, Darby attempted a resolution of his exegetical dilemma by distinguishing between Scripture intended for the Church and Scripture intended for Israel. . . . Darby's difficulty was solved by assuming that the Gospels were addressed partly to Jews and partly to Christians."
Thus, the doctrine of the separation of Israel and the Church, the foundation of dispensationalism, was born out of Darby's attempt to justify his newly fabricated rapture theory with the Bible. Dispensationalists believed justification for carving up the Scriptures came from 2 Timothy 2:15 (KJV) "rightly dividing the word of truth." Subsequent dispensationalists divided the Scriptures in terms of categories of people: Jew, Gentile, and Christian. Chafer taught that the only Scriptures addressed specifically to Christians were the gospel of John, Acts, and the Epistles! Pettengill taught that the Great Commission was for the Jews only.
The doctrine of the Rapture is only a couple of hundred years old and has had waves of popularity, one of which was back in the middle 1970s. It was invented and is not an accepted doctrine by the majority of mainline Christian churches.