1. The common use of the “K” spelling is a fairly recent one, apparently introduced to create a consensus. However, it should be noted that many Rabbis, historians and other scholars have been using the “C” spelling when discussing what we might loosely term “Traditional Kabbalah.” In fact, to date there are still French, Spanish, Portuguese, Italian, and Swiss authors, amongst others, who are still using that spelling in their studies of mainstream “Kabbalah.” The suggestion that the “C” spelling be used exclusively to designate a Christian variant of Kabbalistic thinking, would create confusion as far as a veritable host of works are concerned, which were written over a period of more than a hundred years. Likewise the “K” spelling was and still is being used by scholars around the globe in their discussions of “Christian Kabbalah.”
2. The division of the Kabbalistic Tradition in this manner into the mentioned three categories is seriously problematic. It suggests a uniform pattern of thought to be prevailing within the “Jewish Mystical Tradition,” which is patently an inaccurate portrayal of the tradition over the thousand and more years of its existence.Besides the obvious differences between, for example, the teachings of Isaac Luria and that of the author of the Zohar, marking distinct periods in the development of the Tradition, there are enormous differences and major disagreements between Kabbalists living in the same era, with regard to even the most basic tenets of Kabbalah, e.g. the ten Sefirot, etc. Pertaining to this specific concept, there were Kabbalists who did not like the sefirotic system at all, and rarely made use of it. Moreover, there were thinkers within this tradition who did not agree with Talmudic studies, yet these very individuals are considered part of that tradition. In fact, there are several absolutely distinct “Kabbalistic traditions” and diverse schools of thought which developed over the centuries, some of them considered to be heretical, yet many of the latter kind are now generically accepted as part of what mainstream religionists term “Kosher Kabbalah.”
3. As far as I am concerned the word “Kabbalah” is a Hebrew term with only one spelling. The transliteration of this word has been somewhat problematic due to the fact that the sound of its initial letter is represented by two letters in the Hebrew alphabet, i.e. Kaf and Kof. The latter letter is the one used in the word itself, and has been designated “C,” “K,” or “Q” by different authors, thus the variants in the spelling of the word in languages using the Latin alphabet. Trying to use those variants to denote three different approaches within the Tradition does not work for anybody using the Hebrew, Greek or Cyrillic alphabet. Thus such usage cannot be universal.Settling for one common spelling, i.e. “Kabbalah,” and then clearly indicating a specific subsidiary of this tradition under discussion—Ecstatic Kabbalah, Theurgic Kabbalah, Prophetic Kabbalah, Lurianic Kabbalah, Christian Kabbalah, Hermetic Kabbalah, etc., is far more useful and accurate. Besides, there is in truth only one “Kabbalah,” the teachings of which are wielded in as many ways as there are people to invent them from their personal perspectives. Provided the core principles and doctrines of the tradition are understood and upheld intact, there can be an infinite number of variant interpretations.