Adolf Hitler was a great orator and, regardless of his personal religious convictions which are oft debated, he led Nazi Germany under the appearance of a Christian leader.
In many of his public speeches he often referred to God, sometimes by name of Jesus or Lord. Many of these were never recorded on video, however, some of Hitlers speeches indeed remain. This is a clip from a Nazi propaganda film that shows Hitler telling Germans that the Nazi movement came directly from God.
Moral of the story? Be cautious of great speakers who tell you their movement is from God.