I went to a Pentecostal college (Evangel). Like you, I've been interested in the books of the Apocrypha.
There are some threads here about speaking in tongues- I think I may have started them. However, to be succinct about it, I can tell you that being able to do it since my Pentecostal days, it's really not a big deal. Much is made of it certainly within Pentecostalism, which considers the phenomena real language. However, I have yet to find a honest-to-god translation anywhere. And the research on it is quite interesting, suggesting a pre-verbal state, the lower- rather than the higher - centers of the brain being involved. I'm not sure what this suggests!
Looking forward to talking about this and other things with you.
Be the love you seek.