Jon writes:
Do you believe in unforgivable sin?
What do you consider these sins to be?
I suggest that it is serving and loving evil and calling it good. Here is a quote I've used before from CS Lewis's book "The Last Battle". Aslan represents the Christ figure and Tash represents the face of evil.
quote:
I (Aslan) take to me the services which thou hast done to him. For I and he are of such different kinds that no service which is vile can be done to me, and none which is not vile can be done to him. Therefore if any man swear by Tash and keep his oath for the oath’s sake, it is by me that he has truly sworn, though he know it not, and it is I who reward him. And if any man do a cruelty in my name, then, though he says he says the name Aslan, it is Tash whom he serves and by Tash his deed is accepted.
It isn't so much that the sin can't be forgiven but it is simply that worshipping or following that which is evil or hateful, (as that is the opposite of what Christ taught), then we have made our choice and God honours that choice. As Lewis says in "The Great Divorce"
quote:
There are only two kinds of people in the end: those who say to God, "Thy will be done," and those to whom God says, in the end, "Thy will be done." All that are in Hell, choose it. Without that self-choice there could be no Hell. No soul that seriously and constantly desires joy will ever miss it. Those who seek find. Those who knock it is opened.
The only thing I would add is that I also believe that in the end there is perfect justice, and if such things as mental illness are involved then God's perfect justice will prevail.
He has told you, O man, what is good ; And what does the LORD require of you But to do justice, to love kindness, And to walk humbly with your God.
Micah 6:8