Christianity, rightly understood, is utterly unlike religion that man invents. It is so completely contrary to the way man does things that it must have come from God. Take Christmas, for example; only God could have thought of that. When man invents a super being, he comes up with a Superman, or a Captain Marvel. God gives the world a baby.
Richard Halverson, quoted in "The Light Has Shined" devotional by Dr. Tim Smith