Your question assumes that all followers of Judaism believe the same thing....do all followers of Christianity believe the same thing? How about Muslims?
There are many flavors of Judaism....some are closer to fundamentalists (orthodox) and some are very flexible in their views (reformed/renewal
movement. True Kabbalah--not the kind that Madonna and her gang has hijacked--is pretty intellectual material that requires many years of
study/meditiation and hard work to accurately understand and accomplish gematria and other Kabbalistic practices.