Proposed: The Christian God is a tyrant determined to force everyone on the planet to convert to Christianity, and worship as a Christian, and the illusion of "Free Will" is a pretence that he created to convince you that observance was your own idea.
Otherwise, why fill the Bible with references of the eternal torture, and suffering that would befall non-believers after judgement, when one dies. Now, the first question that is going to be asked is going to be an attempt at a distraction: "Why should I care what the Bible says, since I'm an Atheist?" However, it doesn't matter what my theological position is, does it? "The truth is the truth," right? So, if the Bible is the Truth, then the things that are in the Bible are "the Truth" whether I believe them, or not. Which, brings us right back around to my question. If God is not a tyrant, and does not demand worship from everyone, then why threaten anyone who does not believe? If God does not care one way, or the other, if someone chooses to believe, or not, why bother with all of the threats?