Ezekiel 21 is God telling Israel they were about to be cut-off or going into bondage in Babylon for 70 years. So, because of the wicked peoples sins the Righteous also had to suffer. Daniel was carried away to Babylon. Many righteous men were not doubt enslaved and killed because of the wicked peoples continual sins against God. Its context, context, context.
No, it concerning the Day of the Lord God's Wrath (which they were afraid of) but I point out he's POINTING unto the Gathering unto Christ thus I point out he's pointing unto the Rapture which must happen first. Let me take out the Rapture(Gathering) part out and show you what his CONCERN really is. They wrote different from the way we write. And different languages, even today when translated confuses people. Beseech simply means we ask you urgently.
2 Thess. 2:1 Now we beseech you, brethren, ()2 That ye be not soon shaken in mind, or be troubled, neither by spirit, nor by word, nor by letter as from us, as that the day of Christ is at hand.
NOW THINK OF THE PART IN PARENTHISIS. (by the coming of our Lord Jesus Christ, and by our gathering together unto him,)
So now INSERT the parenthetical citation into the above verse, see how he's really speaking about their FEAR of being in the Day of the Lord God's Wrath? But points out IN PARENTHISIS why they should not fear?
Paul wants them to know why he's asking them NOT TO FEAR !! The Rapture is what they need to look for, because the Day of the Lord (God's Wrath) must be preceded by The Rapture (DEPARTURE) and then the Coming Anti-Christ. Well, since we leave at the Rapture, why would you think I am suggesting that Paul was telling the Thessalonians to look for the Anti-Christ? We will be gone at the Rapture, then the Man of Sin comes, but BOTH THINGS must happen before the DOTL comes.
So, Paul was only trying to allay their fears that they were in the DOTL by showing them two things which must happen before the DOTL happens. The Rapture (Departure) and the Man of Sin, thus they could not be in the coming Day of the Lord.