My point is help people understand what the Bible teaches.
IMO you don't know what the Bible teaches on this issue, by the fact that you use Pentecostal religious jargon as if you're quoting the Bible, but that jargon is taken out of context and made to mean something that the original writers didn't mean. And you throw around the word "blasphemy" as if to scare people into submission to your agenda (as I've seen many Pentecostals do).
But indulge me, if you will, on one point here: what if what I said is true, about modern tongues being a natural ability? Wouldn't that mean then (if indeed that were true), that whoever attributes it to a supernatural gift of the Holy Spirit is taking the Lord's name in vain? That is, it is in effect a misuse of the name of the Spirit, because it's not really the Spirit that is doing it, but it is the natural ability of the person. Attributing it to God is misusing God's name, because God isn't doing it. It becomes paramount then, that modern tongues be proven to be miraculous, if it is to be accepted by anyone with knowledge of scripture. And if it could be proven, it would have been done many times in the past century.
Therefore, it matters not how strong the belief a person has in modern tongues. Strong belief doesn't constitute truth, and neither does sincerity. People can be sincerely wrong about things they have strong beliefs over. Muslims and Hindus have beliefs just as strong in their experiences as Pentecostals have in theirs. So what's the difference? Reformed Christianity says that the Bible is the only standard we have of measuring religious experiences.
So, let's examine the verse in 1 Cor. 14 that says "tongues are for unbelievers." In the case of the house of Cornelius, the apostles were the "unbelievers" in question, since they were amazed that God had given the Spirit to gentiles. It indicates that they did not believe God would do such a thing. That's an important event in the early church, and the reason it is written into Acts. Not too long later they had to get a council together in Jerusalem to settle that dispute once and for all. In Acts 2, because many unbelievers understood the dialects, they knew it was a sign from God.
So in the case of the Corinthians, they did have miraculous gifts, at least we know that some of them had the gift of tongues. But they were misusing it, in that it was something of pride and selfish ambition and power struggles that some of them were doing it for, which was an evil agenda. So in that environment, Paul says to them that tongues are for unbelievers. Compare that with the statement that "if an unbeliever comes into your midst, and all are speaking in tongues, will he not say you are mad?" So the clear implication here is that an unbeliever has to know that what is being done is a miraculous event, just like it was in Acts 2. If the unbeliever understands what is being said, and comes to know that the person speaking it doesn't know what they are saying, that's proof that it is miraculous, and this becomes a sign to the unbeliever. But if he can't understand what is being said, then no one is speaking to his heart, and he leaves with the thought that Christianity is nothing but confusion. And this is how many outside people think of the Pentecostal movement, because there really is no message in modern tongues, and it has never been proven miraculous.
What I am saying is that modern tongues is not the tongues described in scripture, and the big difference is that one is miraculous and the other is not. And of course, this offends every Pentecostal because they claim that it is a miraculous gift from God. So to say that it isn't stirs up all kinds of fears and jealous attitudes.
Therefore, we can't get past this point, and I believe this is the crux of the matter. I'm trying to get the conversation past the con game. I am challenging any Pentecostal or Charismatic to prove that their tongues really is a miraculous gift of God, and I think the only way to do that is the Biblical way laid out to us in Acts 2. Talking points like "prayer language" and such doesn't cut the mustard, because it's nothing but theory and speculation. People have to see real languages being spoken by people who didn't learn them. There has to be real godly messages in them that people can understand, and not the pretense of people inventing "interpretations." If Charismatics are serious about apologetics on this issue, then they should start collecting evidences to present them to the world on youtube (for example), rather than the more-of-the-same testimonials that prove nothing.
If the conversation can't get past this, then IMO the conversation is over.
TD