When you refer to a god in that way it shouldn't be capitalized.
I think the code has something to do with the secret of Pain since they figured out it said "he is not among them." Probably reffering to the original guy (forget his name), who had the eye technique while Jiraya was training them after he found them. It seems he also took over his two companions as well, since Jiraya recognized one of them (the other boy), and it seemed like they focused on another body that was taken over, which was that of a girl, which wouldn't be Konan, but maybe a clone of her? Who knows, hopefully things will be explained soon.