The rapture [the catching away] is a valid Biblical doctrine. Unfortunately, both Catholics and non-Catholics confuse the catching away as described by Paul with the 2nd coming as described in Matthew 24, etc. The catching away of all church-age believers is found only in Paulâs epistles, e.g. 1 Thess. 4:13-18, Titus 2:13; 1 Cor. 15:51ff. Paul says that we should âcomfort one another with these wordsâ [1 Thess. 4:18]. Further, he calls this doctrine âour blessed hopeâ [Titus 2:13]. At that time we believers will be changed [1 Cor. 15:51ff]. What a blessed doctrine!
I think you are overstating your case:
1 corinthians:
50 This I declare, brothers: flesh and blood cannot inherit the kingdom of God, nor does corruption inherit incorruption.
51 Behold, I tell you a mystery. We shall not all fall asleep, but we will all be changed,
52 in an instant, in the blink of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised incorruptible, and we shall be changed.
1 Thess:
16 For the Lord himself, with a word of command, with the voice of an archangel and with the trumpet of God, will come down from heaven, and the dead in Christ will rise first.
17 Then we who are alive, who are left, will be caught up together 4 with them in the clouds to meet the Lord in the air. Thus we shall always be with the Lord.
Titus 2:
11 For the grace of God has appeared, saving all
12 and training us to reject godless ways and worldly desires and to live temperately, justly, and devoutly in this age,
13 as we await the blessed hope, the appearance of the glory of the great God and of our savior Jesus Christ,
14 who gave himself for us to deliver us from all lawlessness and to cleanse for himself a people as his own, eager to do what is good.
Only 1 Thess even mentions rising to the sky and it that one it follows those that are already dead. It has nothing to do with the Rapture. It simply is discussing the last day. Titus is simply waiting for Jesus. ! corinthians is desribing our heavenly bodies.