4 Bible Verses about Strong Delusion

And this is the reason that God sends them a strong delusion [to influence them]: It is so that they would believe the lie, in order that all those who have not believed the truth, but have taken pleasure in wrongdoing, would be condemned. But we ought to thank God for you always, brothers [who are] dearly loved by the Lord, because God has chosen you from the beginning [Note: Some manuscripts use the Greek word for "firstfruits" instead of "beginning" here, but it is difficult to know in what sense the Thessalonian Christians were "first"], in order to be saved through being set apart by the Holy Spirit and through belief of the truth [of the Gospel].

And since these people refused to acknowledge God, He has allowed [or, abandoned] them to have degraded minds and to practice those things which they should not do.

Now the Holy Spirit specifically says that in later times [Note: "Later times" in the New Testament usually refers to the period following the first coming of Christ and the establishment of the church], some people will fall away from the faith [i.e., the true teaching of Christianity]. They will pay attention to deceitful spirits [i.e., lying people] and the teaching of evil spirits.

But evil people and impostors will go from bad to worse [in their behavior], deceiving people and being deceived by them.