What are the lost guilty of that sends them to eternal doom?

Les teaches that the lost will be brought to the great white throne and will see the Lamb's Book of Life with their names missing, then a long list of evil deeds and works they know they are guilty of. They will have no argument. Their guilt is unbelief and rejecting, and all the world may become guilty before God. Some think they can slip in or barter with old Peter at the pearly gate, but Les says it will not work that way; they are consigned to eternal doom.