The ‘Rapture’ event is mentioned very specifically and in much detail and is referenced in multiple passages in the Bible including these:
According to the Lord’s word, we tell you that we who are still alive, who are left until the coming of the Lord, will certainly not precede those who have fallen asleep. For the Lord himself will come down from heaven, with a loud command, with the voice of the archangel and with the trumpet call of God, and the dead in Christ will rise first. After that, we who are still alive and are left will be caught up together with them in the clouds to meet the Lord in the air. And so we will be with the Lord forever.
I Thessalonians 4: 15-17 (NIV)
Listen, I tell you a mystery: We will not all sleep, but we will all be changed— in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed.
I Corinthians 15: 51-52 (NIV)
These tell us, that is all believers in Jesus Christ, not the rest of the world, will be ‘caught up’, and be changed suddenly and then be with the Lord. Also included are all the dead who have trusted in Him. We don’t know when this will be as God stated it is a ‘Mystery’.
What is vital for us to know is YES IT IS COMING, and YES IT WILL BE FOR REAL. Each of us must ask: Am I prepared? Have I committed my life to Jesus Christ? How about you?