The text is II Thesalonians 2: 11. The question is what is "strong delusion"? Study of this gives me somethings to observe about the wording. First, it does not say "a strong delusion" nor "the strong delusion". Second delusion is singular not delusions. It is sent " that they should believe a lie", not lies. I have found a name in the book of Genesis which means strong delusion. Lamech. Two men had that name. One in Seth's line the other in Cain's. Are we about to get a visit by a pre-flood entity? Time travel is possible, because The Lord did it with John in Revelation. Your thought will be appreciated.