There is as much difference between a language and an alphabet, as there are people in our world who can speak but are unable to read or write. The most ancient spoken language is that of the Bible, which goes back to Adam. The language of precepts and later on of the narrative is derived from the spoken language of the Bible. All of these languages combined and each of them in particular have been extensively used in our religious literature.

The language of Kabbalah was the last one to develop. It is the most difficult language, because to understand it one should be able to feel the spiritual categories of which this language speaks. This is the most precise language of all. Only the language of Kabbalah can accurately render all the spiritual information. However, it can only be received by a student directly from his Kabbalist-teacher. Since for many generations there were only a few Kabbalists unconnected with one another, the language of Kabbalah was the last to develop. Even today it can only be “learned” from the Kabbalist.

Courtesy of http://www.youtube.com/watch?v=zOWx5G76pkU