Why is it necessary for you to blend 1 Thes 4 into 1 Thes 5.
Maybe you should understand what you are reading.
Because it is one event. Look at what is in blue!
1 Thessalonians 4:14-5:9 says:
“if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him. For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming [Gr. parousia]
of the Lord shall not prevent them which are asleep. For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: Then we which are alive and remain ‘shall be caught up’ [Gr. harpazō]
together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord. Wherefore comfort one another with these words. But of the times and the seasons, brethren, ye have no need that I write unto you. For yourselves know perfectly that the day of the Lord so cometh as a thief in the night. For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape. But ye, brethren, are not in darkness, that that day should overtake you as a thief. Ye are all the children of light, and the children of the day: we are not of the night, nor of darkness. Therefore let us not sleep, as do others; but let us watch and be sober. For they that sleep sleep in the night; and they that be drunken are drunken in the night. But let us, who are of the day, be sober, putting on the breastplate of faith and love; and for an helmet, the hope of salvation. For God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ.”
The coming of Christ is a destructive day will catch
the wicked unexpected and unprepared but the righteous waiting and ready. We are caught up before the wicked are destroyed with "sudden destruction" and 'none escape'. We are going to be rescued just before the wrath of God is poured out and everyone left behind suffers "sudden destruction" from which "they shall not escape."
The Greek word
aifnídios is only found in one other passage in Scripture – Luke 21:33-36. Here it is also identified with the unexpected nature of the second coming, where Christ declares:
“Heaven and earth shall pass away: but my words shall not pass away. And take heed to yourselves, lest at any time your hearts be overcharged with surfeiting, and drunkenness, and cares of this life, and so that day come upon you unawares [Gr. aifnídios meaning suddenly]. For as a snare shall it come on all them that dwell on the face of the whole earth. Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.”
So, "they (the wicked) shall not escape" the "sudden destruction" that accompanies Christ's return, but we (the redeemed) are "accounted worthy to escape." It will come upon the rebel "unawares." This is describing the same climactic event. It is the end. Men are either ready or caught unexpectedly; they are caught up or caught on. They are either saved or lost. It is now eternal bliss or eternal torment.
Christ is exhorting His listeners here to be ready for His return, and warning that He will pour out His wrath upon all mankind who are not prepared, ready and rescued. This is the time when the heavens and the earth shall pass away.
The phrase "all these things" (that Pretribbers keep getting tripped up on every time this is discussed) is not everything the Left Behind novels have taught them (including some imaginary future 7-year trib), it is talking about the total destruction and removal of the wicked and current corrupted creation. Read what the text is actually saying.
The words of Christ in Luke 21:33-36 agree with 1 Thessalonians 4:15-5:7 and prove the coming of Christ is final and climactic. It sees the rescue of all the elect and the sudden destruction of all the wicked. It ushers in the end of the world. The escape is indeed the catching away that occurs before the wrath of God is poured out when Jesus comes, when heaven and earth pass away, when creation is regenerated and all the wicked are destroyed.