Here's a simple test for the validity of the tongues being spoken and interpreted. Utter a passage of scripture in the Hebrew or Greek and wait for the interpretation.
Adding to God’s interpretation the Bible that we have in full (perfect) with no laws missing by which we could now him more intimately is the goal of the father of lies.
Without adding to the revealed will of God how could the father of lies deceive men.
Even him, whose coming is after the working of Satan with all power and signs and lying wonders,And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.And for this cause God shall send them strong delusion, that they should believe a lie:That they all might be damned who believed not the truth, but had pleasure in unrighteousness. 2Th 2:9
Adding to God’s perfect word brings the strong delusion needed to continue to believe the lie.
The scripture informs us in that way(lo is Christ here is a new revelation ) it is impossible to deceive the elect. there are no new revelation that say the lord has spoken
And then if any man shall say to you, Lo, here is Christ; or, lo, he is there; believe him not:
For false Christs and false prophets shall rise, and shall shew signs and wonders, to seduce, if it were possible, even the elect.Mar 13:21
It becomes will a person get under the authority of God’s word and do what it says?
Behold, I come quickly: blessed is he that keepeth the sayings of the prophecy of this book.And I John saw these things, and heard them. And when I had heard and seen, I fell down to worship before the feet of the angel which shewed me these things. Rev 22:8
We cannot keep the saying of the book if we add to it.
For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book. Rev 22:18
Would men need more than He has revealed as evidence they have the Holy Spirit that created a new heart in the believer?.
Are tongues today after the working of Satan with all power and signs and lying wonders or is God still bringing new revelations?