John Darby popularized the idea of “The Secret Rapture” around 1878 it has grown explosively as the doctrine of the American Evangelical churches since that time. I’m including some of my research for this sermon for your own study. Here’s a great qoute from DL Moody:
Problems with the pre-tribulational view are highlighted by Baptist (and premillennial) theologian Dale Moody, who wrote: “Belief in a pre-tribulational rapture . . . contradicts all three chapters in the New Testament that mention the tribulation and the rapture together (Mark 13:24–27; Matt. 24:26–31; 2 Thess. 2:1–12). . . . The theory is so biblically bankrupt that the usual defense is made using three passages that do not even mention a tribulation (John 14:3; 1 Thess. 4:17; 1 Cor. 15:52). These are important passages, but they have not had one word to say about a pre-tribulational rapture. . . . Pre-tribulationism is biblically bankrupt and does not know it” (The Word of Truth, 556–7).
Many Christians hold different views on this matter – it should not divide the Church. We can disagree on some things – the rapture or our views of it should not be considered an essential of the faith.