Board Thread:General Discussion/@comment-5880913-20121217041653/@comment-10905458-20140410033119

It's because the writers for DC Comics are fairly immature, so they base him off of whatever religion they have, as opposed to just choosing one for the character and sticking with it. With Marvel, at least they solidify their atheists (Iron Man, Beast, Carnage, Kingpin, Antman), while I'll give DC credit for doing it with some characters (Tim Drake, Booster Gold, Anarky, Mister Terrific). Multiple writers have just stated Batman's religion in the comics. Some have had him say he's Christian, others have had him say he's an Atheist. For now he should just be considered an agnostic, as calling him an atheist could make a lot of people angry, while calling him a christian could also make a lot of people angry, as well as make him far less badass than he's known for being.