“And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.” 1 John 4:3
Note that its not that they simply don’t believe Jesus is the son of God, but rather that he ‘came in the flesh’ that he even existed at all.
At the time of the end, we’re told in Revelation Chapter 9 these are the ones that will seek death but not be able to find it, desire to die, but death will flee from them.
“And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved. And for this cause God shall send them strong delusion, that they should believe a lie: That they all might be damned who believed not the truth, but had pleasure in unrighteousness.” 2 Thessalonians 2:10-12
Nowhere in the Word does it argue for itself that God exists, its a given, we’re told that we should believe from the things that are:
“For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse: “ Romans 1:20
This is a spiritual deception, being blinded, seeing only in the flesh, the natural world,
Well said.