I found a connections to religion in the book. For instance the Adam, Eve and the first sin between Jane and Rochester. Plus the ties between the garden and that to the Garden of Eden. It really comes out during Jane's time with St John. Since he is a minister he connects religion with his feelings and wile he wanted Jane to marry him he intertwined religion with their potential marriage. Unfairly he questioned her faith and made it seem that marrying him would be a duty to god so she must do it. Similar to how Bronte degraded blacks through Rochester's mad wife in attempt to display white as the preferable race. She might again be doing the same thing but through religion. I can see were she might be saying catholicism is the better religion because she alludes to faith, and duty to god many times though St John. Plus St John is a fairly respectable man who is a master and minister. He helped save Jane wile she was out side in the rain on the verge of death. Were the others didn't help her Bronte could be saying that was the Catholic way to help. On the other hand i truly feel that she is saying Catholicism is the weaker faith. Being from England she could naturally be prodistant. I believe Jane was going to go to Ireland to work when Rochester once said she could no longer stay. Seeing that Jane wanted to remain at Thornfield in England this portrays a better place. There of Bronte could be saying England is more desirable, and Prodistant is a better religion. Given that Ireland is more Catholic and England more Prodistant. Then St John who doesn't really love Jane and wants her to be a wife laborer isn't really the best catch. He gives her unfair pressure and questions her faith which is unnecessary. His presser is even to marry him through god instead of love. This isn't really right. His forcefulness toward the issue isnt right either. There for Bronte could be trying to send a message of what religion is truly best.