Who will believe the lie?
Hi Deborah. We're all capable of believing lies. God can protect us, but he won't do so against our free will. He won't force a person to believe the truth. The most sincere person can still choose to turn away from God and it usually happens in the most subtle ways. The heart is deceitful above all things. This is why Jesus talked about hungering and thirsting after "right-ness". We become entangled in so many self deceptions that seeing past them sometimes takes an act of desperation.
Jesus talked about people having eyes and ears, but still being unwilling to see or hear. He said, "this people honors me with their lips, but their heart is far from me". These people say the right things. They believe they are genuine followers, but their heart is still far from God. The strong delusion can easily lead a person to believe they are right with God when they are, in fact, very far from him.
For example, lots of Christians know the right things to say when it comes to obeying Jesus. They know we should agree that obedience is a good thing. They may even quote verses about how we can't love God if we don't obey him, or give some examples from their own life where they obeyed God. But when it comes to specific teachings about materialism, pride, greed, reputation, family... radical, challenging, break-out-of-the-systems-of-man life changing teachings they suddenly have a long list of excuses for why Jesus didn't really mean what he said, how we're not saved by "works", how those teachings were only meant for specific people like the apostles or a specific rich man etc.
Jesus talked about the "deceitfulness of riches" choking the word in a person's heart (Luke 8:14. This was not a teaching for a specific person. It's a consistent theme all throughout the NT. I could quote verse after verse to show it, but what good would it do? I've done that same thing dozens of times thinking, "maybe if I overwhelm them with a long list of evidence it will make them see" but that hasn't worked either (well, not that I know of).
It doesn't matter how good and clear the evidence is if a person does not want to see the truth. That is the point of strong delusion. Look at Jesus and the pharisees. You can hear the frustration in his voice when he's talking to them. He says, "if you don't want to believe me just because I say so, at least believe the miracles I'm doing"! (John 10:38)
They witnessed miracle after miracle from him. They had others say to them, "how can a man do such miracles if he's not from God?" But they couldn't hear it. They couldn't see it. Was it the riches which deceived them? Did they deceive themselves? Was it their parents or the culture around them which deceived them? In the end it really doesn't matter. The point is that even when confronted with the truth from the son of God himself, they still chose to believe a lie. In one breath Jesus praised Peter for his ability to hear from God and in the next he was practically referring to him as Satan. The same can be true for any one of us no matter how confident we feel about our faith or God's love, because God's love will not hide our unwillingness to see the truth.
This same "deceitfulness of riches" is what will cause people to miss the significance of the Mark. Because they put their trust in money as their source of life and provision they see no problem with buying/selling, despite the warning in the prophecy which specifically mentions buying and selling! When someone comes along exposing the deception it's viewed as "hysteria". It's casually dismissed, explained away or ignored altogether.
The pharisees were just ordinary human beings the same as us. We are not better than them when it comes to the same basic human fallacies. With hindsight we can see just how stubborn and foolish the they were, but people who ignore the obvious regarding the Mark cannot see the same foolishness in themselves. A "Mark" in the hand for buying/selling; a microchip in the hand for buying/selling and in one way or another they say "so what". This is strong delusion.