Jim asks an interesting question. Be sure to go to his blog to comment, but I agree with the fathers, prayer changes us, not God.
Jen McCreight posted on her blog about someone who gave thanks for having passed an exam, and expressed gratitude for prayers offered on their behalf. Jen made several comments, among which this seemed to me the most interesting:
“Seriously, if God really is the reason that some students were doing well, they should be expelled. A supreme deity isn’t enrolled in school, you are. If they’re altering your grades, that’s cheating.”