Corrie is angry at God because of what he thinks God did to him and believes that by denying His existence God will make things right with him. I have been trying to tell Corrie that God didn't do that to him and that his problem is the work of Satin. You see, Corrie has had a problem for as long as he can remember so he believes that he was born that way. Actually Satin got to Corrie when he was very young and vulnerable. When he was old enough to know better he was also too ashamed and afraid to discuss his problem with someone who might could have helped him. So Satin was able to convince Corrie that it's alright and that he's just the way he is supposed to be.