From a kabbalistic perspective, one could see Judaism and theology as identical—and thus that everyone employing God-talk outside Judaism and its traditional vocabulary is not really taking about the one true God at all. Or, at their most charitable, adherents of this view might recognize some non-Jewish speakers about God as doing some kind of derivative Jewish God-talk, even if these speakers are largely unaware of the deeper meaning of their own words.
According to kabbala (Jewish mysticism), on the night on which "that man" - a Jewish euphemism for Jesus - was born, not even a trace of holiness is present and the klipot exploit every act of holiness for their own purposes.
By and large the special details of Kabbalism which distinguish it from the mainstreams of Jewish thought are what is “occult” in occultism everywhere, and most of the world’s religions can be reinterpreted in these terms. They give Kabbalism its fascination but they do not give it its substance. ... beneath the glittering and mysterious superstructure of the Kabbalah, which purports to be occult Judaism, lies — Judaism.