He's under the impression that the Bible says he would end up in the fiery lake and he is resistant to any other option as he would have to admit other people have a better handle on some topics that he has studied in the past. He's a sad little man and he is his own worst enemy at this point in time. So be it, he and God can sort it out on their own time.
I'm quite comfortable with my knowledge about God and from your posts you should be also. That isn't saying we won't still learn some more things as time goes by, CS and LL are stuck where they are, it is up to them to change that.
BTW a cat-of-nine-tails would take about two blows before they all found something better to do with their time and energy. Doing it to yourself only means the gentlest blows will be delivered.