first Letter, nor by any other man's words, nor by spirit, or anything else which could deceive them. This phrase 'at hand' is made up of two Greek words, 'en' and 'histemi' and means by Paul's usage, 'fixed, appointed, set' (Strong's nos.1722; 2476). Paul's only trying to tell them that God has a certain appointed time for Christ's return for the Second Advent. This means that all His signs He gave must each come to pass, and in the order He told us in His Word. That there were already during Paul's time, those who crept into the early Church which twisted the time of Christ's return with Paul's first Letter, should let one know just how easy it is to be deceived today also, if one allows it.  Those who haven't properly understood God's Message in the Old Testament of a false messiah (Assyrian) coming before Christ Jesus, are risking deception, just like these Thessalonians during Paul's time. This means to check me out in The Word also!  Don't believe on man, believe on Christ Jesus and read His Word for yourself!

II Th 2:3   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;

     Paul's saying don't be deceived by any means. The word for 'deceive' is 'exapatao' in the Greek meaning 'to seduce wholly' (Strong's no.1818). That Greek word is also used to show how Eve was 'beguiled' or 'seduced wholly' by the serpent (Lucifer) of Genesis

2 Cor.11:3:  But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.

1 Tim.2:14: And Adam was not deceived, but the woman being deceived was in the transgression.

 That Message definitely pulls together the next object of this verse, that man of sin, the son of perdition as being Lucifer. As Satan, or Lucifer and his band of fallen angels are the only ones already sentenced to 'perish' in the lake of fire, that's how we know this last part refers to Satan, and not the Apostle Judas who betrayed Christ. Furthermore, that word perdition is 'apollumi' in the Greek meaning 'to destroy fully', and is also where one of Satan's names, Apollyon (the Destroyer) written in...

 Rev.9:11: And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon.

... Is derived from (Strong's nos.684; 623; 622).
     This verse then is very clear that two events must definitely happen first; before Christ will return, and are fixed and appointed in God's timeline. And according to this Message from GOD through His chosen vessel Paul, there must be 'a falling away', which is the great apostasy of God's People, and secondly, 'that man of sin' or Satan as a spurious messiah must be revealed, all before Christ's return. Some Churches evidently think that this great apostasy is those of our brother Judah (Jews) who refuse Jesus as Saviour. It's not those only, but any deceived Christian individual who accepts the first supernatural being who comes to earth, sitting in God's Temple in Jerusalem, and performs 'lying wonders' while claiming to be Messiah.

 Daniel 7:25: And he shall speak great words against the Most High, and shall wear out the saints of the Most High, and think to change times and laws: and they shall be given into his hand until a time and times and the dividing of time.