The actual word “rapture” is not found in the bible. The word is derived from the Latin raptus, meaning a “carrying off”. Rapture in terms of Christian doctrine says that at or before the return of Jesus Christ, the Christian believers who are still alive will be transformed into their resurrected bodies and “caught up in the clouds” to be with Jesus.
1 Corinthians 15: 20-23 reads:
“But now Christ has been raised from the dead, the first fruits of those who are asleep. 21 For since by a man came death, by a man also came the resurrection of the dead. 22 For as in Adam all die, so also in Christ all shall be made alive. 23 But each in his own order: Christ the first fruits, after that those who are Christ’s at His coming.”
1 Corinthians 15: 51-52 reads:
“Behold, I tell you a mystery; we shall not all sleep, but we shall all be changed, 52 in a moment, in the twinkling of an eye, at the last trumpet; for the trumpet will sound, and the dead will be raised imperishable, and we shall be changed.”
1 Thessalonians 4:16–18 reads:
“For the Lord Himself will descend from heaven with a shout, with the voice of the archangel, and with the trumpet of God; and the dead in Christ shall rise first. 17 Then we who are alive and remain shall be caught up together with them in the clouds to meet the Lord in the air, and thus we shall always be with the Lord. 18 Therefore comfort one another with these words.”