Many times someone's personality changes because of some event or experience in their life. It's easily explained by psychological factors. Perhaps a person is subdued and fearful, and then something happens, or they find an ability to do something, that is conducive to acceptance with the group, which gives that person confidence and boosts their self-esteem, which makes them to express themselves more freely. Many times such experiences radically change the personality, and sometimes that person discovers he can do things he didn't think he could do before.If it was a "Natrural Ability" then why couldn't I do it "before"??
You don't know, of course, and I knew it was useless to say anything right from the beginning.
Such things happen often, and not even in a religious environment. If a religious environment is the venue in which this happens, it is easy to see how the religion is assumed to be the deciding factor. But such things happen often in the world, and are natural responses to events or experiences that trigger personality changes.
So, it is possible that speaking modern tongues was your trigger for a personality change. It doesn't prove that modern tongues is miraculous or is of the Holy Spirit. There are many different triggers for such changes, and none of those are proven to be miraculous, either.
I'm not saying that God doesn't use natural means for spiritual growth. I see the NT teaching that God does indeed use natural means. But God using natural means doesn't justify anyone saying that a natural ability is miraculous. I have experienced triggers for personality changes myself, and acknowledge that God used those for my spiritual growth, but I'm not so audacious as to claim those were miraculous events or actions.
My point is that just because you had a personality change and discovered an ability to teach the Bible doesn't prove that modern tongues is miraculous or of God or the same kind of tongues as described in the NT. So the question still stands, how exactly are you edified by speaking in tongues? Edification isn't a one-time happening. In the context of 1 Cor. 14, Paul is indicating that every time a person speaks in tongues they are edified. I'm wondering how that is for you, and how are you edified every time you speak it?
TD