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You HAVE done things to deserve Hell. That's the point. We have lost our sensitivity to how completely at odds with God's nature we are since the Fall, the infinite requirements of the Law, of God's nature.
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What things? Was I just born with sin?
It's a matter of not being able because of the sin nature to love God as we should or love our neighbor as we should. No matter how good we are in some sense or other we are simply incapable of being good enough. It's in our nature.
Are all of us at odds with God's nature? What about those who do tremendous good in the world. If they are at odd with God's nature, what does that say about his nature?
It says He is so amazingly holy that we can't even imagine what such holiness is.
We think we are good when we are not.
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Define good. How do we know if we are good?
Whatever you think good is isn't really good. That's all I was saying.
Simply doubting God is a tremendous sin.
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Why? This has never made sense to me. Are we punished for exercising the reason we're endowed with?
Our reason is FALLEN, we are not what we were created to be. At the Fall our first parents lost their spiritual life in God, and all their capacities began to die. Our life depends upon God but sin destroys our connection with God, destroys our lifeline, and that means all our abilities. Over the millennia since then the infirmities have simply accumulated in the human race. We don't think as clearly as we were originally created to think (if we did we'd all agree with each other about everything).
But I don't suppose this will persuade you either.
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Not to my satisfaction, no, but it's not because i'm unwilling to be persuaded.
Have you spent much time reading the Bible or reading CHristian books?