I have conversations with a lot of different kinds of people. People who study Metaphysics who claim the proper magnetic field will save humanity, to folks in the 5% nation who call themselves God, and believe that knowing how many miles there are between the Earth and the Moon has a purpose outside of astronomy class. Even those who claim to be Christian, but have No Knowledge or Understanding about Christ whatsoever.
One of the most lively conversations surrounds the topic speaking in tongues. Some say that it was the day of Pentecost when the Holy Ghost came that the Church took over from the nation of Israel.
First and most importantly speaking in tongues is a sign for NON-BELIEVERS
"Wherefore tongues are for a sign, not to them that believe, but to them that believe not..." (1Corinthians 14:22)
Acts chapter 2 (v.1-18) while Peter was speaking a rushing wind came and fiery tongues appeared by each of the people there. These tongues were there for the purpose of translation. Peter spoke a Galilen dialect, but Israelites from all over the world heard in every language (the language of their individual homeland).
Also notice towards the end of the Chapter Peter quotes Joel. After reading Joel chap 2 you will notice that instead of talking about speaking in tongues Joel's prophecy mentioned that The Spirit of God will be poured out.
The question then becomes, what happens when the Lord pours out His spirit upon you?
"Turn you at my reproof: behold, I will pour out my spirit unto you, I will make known my words unto you" (Proverbs 1:22-23). When the spirit is poured out on you, you will KNOW (have knowledge of something).... Namely knowledge of His Word.
This is what Jesus spoke about..
God is pouring out His spirit upon you right now thru your computer screen. Through His Word.
Now just think for a moment. If something doesn't teach you how to get Salvation or edify you, what's the purpose? What is it good for??
"...he that speaketh in an unknown tongue speaketh not unto men, but unto God: for no man understandeth him; howbeit in the spirit he speaketh mysteries... He that speaketh in an unknown tongue edifieth himself; but he that prophesieth edifieth the church" (1Corinthians 14:1-4).
If u can't understand the tongue how can you try the spirit? (1John 4:1)
But some say: if the spirit come upon you, and you prophesy
"And it came to pass on the morrow, that the evil spirit from God came upon Saul, and he prophesied in the midst of the house: and David played with his hand, as at other times: and there was a javelin in Saul's hand" (1Samuel 18:10)
*[did you notice that the evil spirit came "From God"]...
"Brethren, be not children in understanding: howbeit in malice be ye children, but in understanding be men. In the law it is written, With men of other tongues and other lips will I speak unto this people; and yet for all that will they not hear me, saith the Lord" (1Corinthians 14:20-21).
This is quoted from the 28th chapter of Isaiah.
THE CONCLUSION OF THE MATTER: "Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying serveth not for them that believe not, but for them which believe. If therefore the whole church be come together into one place, and all speak with tongues, and there come in those that are unlearned, or unbelievers, will they not say that ye are mad?" (1Corinthians 14:22-23)
CONSIDER THIS: Even the sign Jesus gave, people don't believe.
They say Jesus died good Friday evening and rose from the dead Easter Sunday morning.