Did Adolf Hitler worship any deity very deeply to the point of not invoking another "Gods" name in an international political speech? Earlier events in his life in Linz and Vienna were not shown as being interested in religion. Maybe the fanatic and poisonous ideology his mind developed up to the point of the rally is the the only religion he knew. Religious figures took the role of the Aryan fighter of Christianity in Hitler's very wild and twisted imagination. For example Jesus is remodeled into an Aryan messiah who fights against the "Pharisees and Jewish Corruption" (Hitler's Table Talk, 1951) . I do want to hear different thoughts on this.
Link to the rally mentioned: https://www.youtube.com/watch?v=eq9yst4W-6c
"Under God" was only added to the pledge in 1954. You can read a previous answer about that here: https://www.reddit.com/r/AskHistorians/comments/974dmv/under_god_was_added_to_the_us_pledge_of/