Okay, let me offer you these four reasons for now. There is a fifth reason, but it’s a bit long. So I’ll let you digest these, and if you want to hear one more, just let me know and I’ll share it.
1. God does not subject His children to wrath
The New Testament repeatedly says that Christians are saved from wrath through Christ (Romans 5:9), that Jesus has delivered us from the wrath to come (I Thessalonians 1:10), that God hath not appointed us to wrath (I Ths 5:9), and so on.
But the Revelation repeatedly describes this seven-year war by such expressions as the wrath of the lamb, the wrath of God, the great day of his wrath, the wine of his wrath, the fierceness of his wrath, and so forth.
God reserves His wrath for the lost who are by nature the children of wrath (Ephesians 2:3), the wrath of God cometh on the children of disobedience (Colossians 3:6), the wrath is come upon them to the uttermost (I Thessalonians 2:16), etc.
2. The conspicuous absence of any mention of the Church throughout the Tribulation chapters (Revelation 4-19).
Churches are mentioned in every chapter before this, and once again in the final chapter – but never during the entire Tribulation saga. A curious omission if the church is the devil’s target and the Bridegroom’s love! An argument from silence? Oh yes – but a very “loud” silence!
3. The imminent return of Christ
Jesus frequently describes His coming as a thief in the night – no man would know the day nor the hour – the times nor the seasons – such a time as ye think not – be always ready – and so forth. His whole point seems to be that if you’re caught off-guard when it begins, there’ll be no time to change your lot afterward. We generally summarize this concept as the “imminent return” of Christ.
Now, the key events that take place from the appearance of the antichrist through various series of judgments all the way to Armageddon are fairly well mapped out in the Revelation. So if the Bible taught that the Rapture came at the middle of the Tribulation, or at the end, it wouldn’t really be that hard to estimate the time or season of it. The only point in the drama where it can be completely unpredictable is at the very start. Revelation 4:1, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me, which said, Come up hither…
4. The Church’s restraint of the antichrist
In II Thessalonians 2:1 and following, Paul beseeches his readers not to be deceived into thinking that the Tribulation is already upon them. He beseeches them on the basis of things they should remember from his teaching when he had been with them (verse 5) – especially about the coming of Christ and our gathering together unto Him (verse 1), meaning the rapture.
He says that the Tribulation cannot come before a great falling away – and the Greek word is “apostasia” – or apostasy. This describes the moral freefall that will overcome the world when the salt and light is abruptly removed leaving it in decadence and darkness. For the first time in history, there will be no believers anywhere on earth.
And in that spiritual midnight, the antichrist will finally be able to assume power (verse 3).
In verses 6-7 Paul says that, based on what he’s just reminded them of, they now know what withholds the antichrist that he might be revealed in his time. The mystery of iniquity, the unseen forces ever seeking to bring the antichrist to power, are always at work in this world – but He Who is currently hindering this will continue to do so until He’s taken out of the way. That’s talking about the Holy Spirit working through the body of Christ until that body of believers is gathered unto him (verse 1).
And then he repeats that only then shall that Wicked [one] be revealed (verse 8).
The point is that, so long as the Church exists in this world, the antichrist will never be able to rise. Jesus said that the gates of hell could not prevail against it. We must be removed through the rapture before the apostasy or the antichrist or any other of the dominos can fall.
I hope these thoughts help you. Let me know if you have any questions.