Besides the mundane answers like laziness, shyness, etc., the answer, I believe, lies in the fact that if they really meditate on the idea of hell they could not believe in a loving, just God. Prayed about it–no insights received as you might expect. If God is good and hell is real then we must redefine what we mean by good as it pertains to God. They believe their son, whom they love dearly, is going to be tortured forever. I wonder what it means to demand consistency from people who subscribe to a (supposedly) delusional “you got word that soon, the Nazis were going to invade” Well, how soon?I think a lot depends on whether there is a specific date or whether it’s just something vaguely in the future and not expected to happen tomorrow. His parents intellectually know that he is going to die at some point but they don’t expect it to happen soon and they certainly don’t expect it to happen tomorrow.This is not a post for attacking Christian beliefs or promoting atheistic views. Maybe you would refuse to leave until they came away with you. But this is not what Christians do for their friends and family who they really believe are on the verge of falling into eternal torture, even though they this stuff, but they don’t act like it. Let’s say we all lived in Poland at the start of World War II and you got word that soon, the Nazis were going to invade the town where several of your friends and family lived.
I was at church (I still go to church when I’m back at home, to avoid arguments with my parents), and after the service I was milling about in the foyer and came across my uncle talking to another fellow in the church. They know it’s crazy, but they still believe it anyway. So why aren’t we rushing around to get everything done, continually updating our wills, always making sure that funeral plans are arranged, etc.?
Otherwise, they are being disloyal and if they are disloyal, then that eternity of bliss is less certain.