An understanding of scripture prepares and readies you for the return of Christ and both Books of Thessalonians are good places to start as you begin Gathering Together unto Him in 2 Thes. 2:1 KJV:
Now we beseech you, brethren, by the coming of our Lord Jesus Christ, and by our gathering together unto him,
Gathering Together unto Him is the subject and 2 Thes. 2:3 KJV tells that His return does not take place until after the Apostasy, a “Falling Away”, a brief period of time that Satan pursues you…claiming to be Christ.
Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition;
“Son of Perdition” is one of Satan’s names and with him coming as Antichrist, the “Instead of Christ”, preparation is required for you to recognize him. You see him and his Fallen Angels arriving in Rev. 12:9 KJV:
And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.
You must be prepared for Satan; his supernatural power gives him plenty of opportunity to convince you that he is Christ. His goal is to deceive you as coming first gives him a distinct advantage; this verse shows him deceiving the whole world.
Paul wrote Second Thessalonians when he realized how misleading 1 Thes. 4:17 KJV is and it reads:
Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.
Many understand this verse to be saying that when Christ returns, you escape the Apostasy by “Flying Away”. This is not going to happen as Gathering Together unto Him is Christ coming here and you staying put!
In this verse, “Air” is misleading and needs to be explained. Paul uses the word “Air” to communicate that all living when Christ returns are changed from their flesh body into their spiritual body…their “spiritual breath of Life” body. This change is required for you to see Him, for you to be with Him.
Your Strong’s Concordance shows this interpretation of Paul’s use of “Air” to be correct. The word “Air” in English is “Aer” in the Greek manuscripts and your Strong’s shows its use: