Is it the religion itself though, or is it about tying the law execution and religion?
It's of no use anyway. In most recent cases where one side was religious and other one wasn't, religious ones were usually bad guys. Stance on abortions, ID, this abomination. I can't remember them ever backing something good against secular people trying to do something bad.
Communist Germany, USSR, Communist China/Mao, North Korea, Mussolini's Italy, etc.? All of those were or are "religious" governments?