The manifestation of speaking in tongues wasn't even available in the OT. Joel 2:28-32 is a prophecy of that which was to come and which was manifested first in Acts when the apostles were filled with power from on high and that "power from on high" was made known through the manifestation of speaking in tongues.
Yes, I know. But did you see what Peter said about this manifestation?
{15} "For these men are not drunk, as you suppose, for it is
only the third hour of the day;
{16} but this is what was spoken of through the prophet Joel:
{17} 'AND IT SHALL BE IN THE LAST DAYS,' God says, 'THAT I WILL POUR FORTH OF MY SPIRIT ON ALL MANKIND; AND YOUR SONS AND YOUR DAUGHTERS SHALL PROPHESY, AND YOUR YOUNG MEN SHALL SEE VISIONS, AND YOUR OLD MEN SHALL DREAM DREAMS;
Acts 2:15-17 (NASB)
The manifestation of tongues - as Peter sees them - is a sign that they were in "the last days"!
OK, so then, the "last days" of what?
{18} "For truly I say to you,
until heaven and earth pass away, not the smallest letter or stroke shall pass from the Law until all is accomplished.
Matthew 5:18 (NASB)
The "last days" under which Peter and all the apostles saw themselves living were the "last days" of the Law (the Old Covenant), which came to an end when the kingdom of God was taken away from Israel with the destruction of Jerusalem and the temple. This happened in 70AD.
I can't continue - in good conscience - to use a "gift" that I see as having passed away when Christ's perfect kingdom was fully established. You may feel differently. That is between you and the Holy Spirit.
Having said that, there are other gifts of the Spirit I do see as still being critically important in use in the church today. There are two I have been told I have, though you may disagree: the gifts of teaching and of the discernment of spirits.
Isn't it interesting that Paul writes that God's gifts and calling are "irrevocable" except for one of the gifts he says will pass away?
IMHO, the church needs more gifted pastors, teachers, leaders, and givers, and fewer of those who "speak in tongues" as though it were the most important gift in the Bible.
And I write this having believed quite the opposite once: I once firmly believed that tongues were a sign of the believer's baptism into the Holy Spirit. But the only "sign" by which Jesus said we would ever know any tree was by the fruit it produced, not whether one spoke in tongues.
IMHO, the church today needs to get its priorities straight.
For what it's worth.