"Oh my God" does not show favor toward any particular religion or ideology.

If you're not joking, you're quoting a rule from a different website... which even if it were a rule on this website, I still wouldn't consider the quote in this title to be breaking.

"Oh my God" does not actually refer to any religion or deity. In common English parlance it is exclusively used to convey shock or disbelief—as seen in this article.