What's your source for this allegation? You mean most Nazi party members were also professing Christians? I don't think so.
Also, "Gott mit uns" (="God [is] with us"), was a motto of the German Empire during WW I. It wasn't used by the Nazis. Get a clue.
Well, it was, in a manner of speaking. It was on German Army belt buckles and other accoutrements, but it had been there for a long time before the Nazis and the Nazis just never changed it. Proves nothing about the Nazis one way or another.