“For the Lord himself will come down from heaven with a commanding shout, with the voice of the archangel, and with the trumpet call of God. First, the believers who have died will rise from their graves. Then, together with them, we who are still alive and remain on the earth will be caught up in the clouds to meet the Lord in the air. Then we will be with the Lord forever. So, encourage each other with these words.” 1 Thessalonians 4:16-18
Rapture or the Latin word "rapturo" defined as being "caught up" or "snatched away" is perhaps the most important piece of prophecy for us to understand. According to Scripture, all who have put their trust in Christ, living and deceased, will suddenly be caught up from the earth, be joined with Christ in the air, and taken to heaven. These believers are those who come out of the church age and will become his bride.
“Behold, I am telling you a mystery; we will not all sleep, but we will all be changed, 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 will be changed.” 1 Corinthians 15:51-52
All born-again believers will experience change when they step into eternity. The living will be transformed, along with those who are resurrected from the dead. All believers will be physically remade into their glorified bodies at the rapture. The same "glorified" body that Christ had for 40 days after his resurrection. The change will be instant: "in the twinkling of an eye", something so rapid, so instantaneous, that it defies measurement.
It is speculated to happen at the "last" trumpet. The Greek word "eschatos" can mean either "last in point of time" or "last in point of sequence". With that in mind, the seventh trumpet fits the "last trumpet" before the rapture. It is interesting to note that Jesus was born on the Feast of Trumpets. Could this have anything to do with the timing of the rapture, right after the trumpets?
Jesus informs the disciples before his crucifixion that the elect’s time will be shortened.
“And except those days should be shortened, there should no flesh be saved: but for the ELECT’S sake those days SHALL be SHORTENED.” Matthew 24:22
This promise is also confirmed by a message delivered to Daniel by Gabriel.
“And at that time shall Michael stand up, the great prince which standeth for the children of thy people: and there shall be a time of trouble, such as never was since there was a nation even to that same time: and at that time THY PEOPLE SHALL BE RESCUED, EVERYONE that shall be FOUND written in the BOOK. And many of them that sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt.” Daniel 12:1-2
This event is not for everyone, though all will witness it. People will be going about their lives, oblivious to the timing or meaning of His return. The distinction will rest solely on whether one belongs to Christ or has rejected Him as Savior.