2 Thessalonians 2:10-12
2 Th 2:10 (KJB)
And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.
Deceivableness - Treachery and deceit
Along with all the signs and wonders of the false gospels come the fact that their deceit leads or lets them continue on in unrighteousness. They will continue to sin against the Lord, whether it will be sins of pleasure or sins of religion where they make up their own rules and reject the teachings of the Lord. What is in view in this verse is definitely unbelievers who have rejected the Word of God and have chosen to stay within the confines of their church teachings or the teachings of some TV minister who brings false teachings which appease the hearers. It is these men of sin that are happily deceived by the more famous men of sin who could be the pastors or the evangelists who come with fairy tales instead of true doctrine.
2 Th 2:11 (KJB)
And for this cause God shall send them strong delusion, that they should believe a lie:
Strong - Powerful
Delusion - Error, wandering (from the path of truth)
Lie - Falsehood
Since the unbeliever is continuing in their sin and will not even look at the possibility that they might be in error in doctrine and lifestyle, God will help perpetuate that life of falsehood by sending in a delusion, which is a wandering from the path of truth. If they want to believe a lie, then God will allow them to believe a lie. Since they are perishing and not Godís Elect, they do not want the truth of God, instead they want to bask in those false signs and wonders which gives them good feeling but a false hope. Since their minds are darkened by sin, to believe a lie will go with the sin filled mind. Lies are more easily digested by the unbeliever than the truth and that is why they spurn the truth. Since these people want nothing to do with God, He will give them up unto their own unrighteousness. (Psa 81:12 KJV) So I gave them up unto their own hearts' lust: and they walked in their own counsels. Psalm 81:12 speaks of God giving up the children of Israel to their own counsels and that is the principle found in 2 Thess. 2:11. Their own counsel will be their strong delusion because knowledge void of God only brings one into ruin. God will give them every reason for them to think they are right until they are finally destroyed on Judgment Day.
2 Th 2:12 (KJB)
That they all might be damned who believed not the truth, but had pleasure in unrighteousness.
Damned - Judged
Pleasure - Be well pleased or delight in
The end of this section of Scripture deals with the final judgment which will happen when the Lord returns. Those who found much delight in unrighteousness, whether it is the unrighteousness of sin or of religion will be judged at the White Throne Judgment Seat. What the unbelievers do not understand is that there may be pleasure in sin for a while but the end is damnation. (Heb 11:25 KJV) Choosing rather to suffer affliction with the people of God, than to enjoy the pleasures of sin for a season; Moses knew of this because he was in the palace of Pharaoh and had everything a person could possibly want and yet, because God saved him and placed a different spirit within him, he saw beyond the horizons of the earth and realized there was more to this than just the present pleasures of sin. When God saves someone, their perspectives change from the temporal to the eternal. So in conclusion of this portion of Scripture, we can see that those who are men of sin and bring the deceptions will be judged just as those who believe these men of sin and follow their pernicious teachings.