Katisara:
There's the bible story of the poor man named Lazarus (iirc) and a rich man. They both die, Lazarus goes up to heaven with Moses, the rich man doesn't, and they say the gap between the two is uncrossable. How do you explain this verse?
Obviously, I would have the stance that if one is in heaven, and another is in hell, then it would make sense in a final judgment, changing your mind is too late. It's final for all eternity after all.