You're talking about something that was written in future tense as of the time it was written. You act as if it's future tense to the time Jesus returns.
Yes.
The second coming,
The sentence of eternal separation of all unbelievers,
The glorification of all believers
all happen in the future on that particular day the Lord comes ....,
5
This is a positive proof of
the righteous judgment of God [a sign of His fair verdict], so that you will be considered worthy of His kingdom, for which indeed you are suffering. 6 For after all it is
only just for God to repay with distress those who distress you, 7 and to
give relief to you who are so distressed and to us as well
when the Lord Jesus is revealed from heaven with His mighty angels in a flame of fire, 8 dealing out [full and complete] vengeance to those who do not [seek to] know God and to those who ignore
and refuse to obey the gospel of our Lord Jesus [by choosing not to respond to Him].
9 These people will pay the penalty and endure the punishment of everlasting destruction, banished from the presence of the Lord and from the glory of His power, 10 when He comes to be glorified in His saints on that day ....
Paul repeats this truth a paragraph or 2 later...,
8 Then the lawless one [the Antichrist] will be revealed and
the Lord Jesus will slay him with the breath of His mouth and bring him to an end by the appearance of His coming. 9 The coming of the [Antichrist, the lawless] one is through the activity of Satan, [attended] with great power [all kinds of counterfeit miracles] and [deceptive] signs and false wonders [all of them lies], 10
and by unlimited seduction to evil and with all the deception of wickedness for those who are perishing, because they did not welcome the love of the truth [of the gospel] so as to be saved [they were spiritually blind, and rejected the truth that would have saved them]. 11 Because of this God will send upon them a misleading influence, [an activity of error and deception] so they will believe the lie, 12
in order that all may be judged and condemned who did not believe the truth [about their sin, and the need for salvation through Christ],
14 It was to this end that He called you through our gospel [the good news of Jesus’ death, burial, and resurrection],
so that you may obtain and share in the glory of our Lord Jesus Christ.
Paul very clearly took our Lords teaching (in Matt 25) seriously.
1Thess 4
15
For we say this to you by the Lord’s [own] word, that we who are still alive and remain until the coming of the Lord, will in no way precede [into His presence] those [believers] who have fallen asleep [in death]. 16 For the Lord Himself will come down from heaven with a shout of command, with the voice of the archangel and with the [blast of the] trumpet of God, and the dead in Christ will rise first. 17 Then we who are alive and remain [on the earth] will
simultaneously be caught up (raptured) together with them [the resurrected ones] in the clouds to meet the Lord in the air,
and so we will always be with the Lord! 18 Therefore comfort
and encourage one another with these words [concerning our reunion with believers who have died].
Ch-5
Now as to the times and dates, brothers and sisters, you have no need for anything to be written to you. 2 For you yourselves know perfectly well that the day of the [return of the] Lord is coming just as a thief [comes unexpectedly and suddenly] in the night. 3 While they are saying, “Peace and safety [all is well and secure!]” then [in a moment unforeseen]
destruction will come upon them suddenly like labor pains on a woman with child, and they will absolutely not escape [for there will be no way to escape the judgment of the Lord].