That statement of course does not make sense, reveals the state of confusion you are in. There is no such thing as "unknown tongues", not even in God's written Word! Paul was speaking of known languages of the world with "divers kinds of tongues" (Greek glossa).
No, what you're actually asking me, is to throw away what Apostle Paul actually said, and instead believe what you... say, and the interpretation of those false prophets you listen to. My Heavenly Father and His Son would stop opening up His Word to me by The Holy Spirit if I did that, and I'd be in the same confused state you are in.
You obviously need to study Acts 2 about the cloven tongue that was spoken on Pentecost for yourself, and stop listening to men tell you what it says.
Here's a little lesson for you, and those false prophets you heed about what The Holy Spirit is for. In 1 Corinthians 12, Apostle Paul described the various 'manifestations' of The Holy Spirit as 'divided' to the brethren. He showed not everyone is given the same gift. And when he mentioned "divers kinds of tongues" he was speaking of known languages of the world, and not a single unknown tongue, and definitely not gibberish.
Furthermore, Jesus told His servants that He would send us The Holy Spirit Comforter in the Book of John, and that He would teach us ALL THINGS (John 14:26). Want to know how that links to the Oil He mentioned in His parable of the ten virgins of Matthew 25?
In Pentecostal style churches, that Oil in the lamps of the ten virgins they say represents not just The Holy Spirit, but particularly the idea of speaking in an 'unknown tongue'. And they teach that if one doesn't speak in the unknown tongue, then they don't have the presence of The Holy Spirit! I know this because I have dealt with those in those type churches personally.
But the real Message Lord Jesus was showing about the Oil, is about UNDERSTANDING IN HIS WORD by The Holy Spirit, and THAT is what the Oil represents in that parable. How?...
Firstly, He said The Holy Spirit Comforter He would send would teach us all things. And guess what Apostle Paul said that above all the gifts, charity and what else were the most important? Prophesying. And Paul was not talking about standing up in church and speaking gibberish by that idea to prophesy. To prophesy means to teach with easily understood words...
1 Cor 14:1
14 Follow after charity, and desire spiritual gifts, but rather that ye may prophesy.
KJV
The very thing of confusion you claim, is easily understood as false, simply by keeping to what Apostle Paul actually said...
1 Cor 14:3-9
3 But he that prophesieth speaketh unto men to edification, and exhortation, and comfort.
Is Apostle Paul pointing to an 'unknown tongue' with the above statement? No, Paul is pointing to speaking in known languages the people present can understand, by that, they receive edification, exhortation, and comfort.
4 He that speaketh in an unknown tongue edifieth himself; but he that prophesieth edifieth the church.
Clearly in the above, Paul is not pointing to the cloven tongue of Pentecost, but to a foreign language no one present in the church can understand. That person with that foreign language would only be edifying himself, because only he and God would understand what he was saying in that foreign language.
Paul then shows that to prophesy means speaking easily understood language that the whole church can understand and thus be edified. To prophesy means TO TEACH, not to speak an unknown tongue that the majority cannot understand.
5 I would that ye all spake with tongues, but rather that ye prophesied: for greater is he that prophesieth than he that speaketh with tongues, except he interpret, that the church may receive edifying.
There again, Apostle Paul reveals that to prophesy is NOT the idea of being able to speak in many languages (YES... the word "tongues" there is Greek glossa, meaning known languages of the world. Paul is not pointing to an 'unknown tongue' YOU claim is about the one cloven tongue of Acts 2).
6 Now, brethren, if I come unto you speaking with tongues, what shall I profit you, except I shall speak to you either by revelation, or by knowledge, or by prophesying, or by doctrine?
Once again, Paul shows he is speaking of known... languages of the world (it's plural there), and not the cloven tongue of Pentecost. And again, by "prophesying" he is pointing to TEACHING so the whole church can be edified with understanding, i.e., the main purpose for which Jesus said He would send The Holy Spirit Comforter. Further below, Paul is going to confirm beyond all doubt that he was pointing to 'teaching' in known words is what he meant by prophesying...
7 And even things without life giving sound, whether pipe or harp, except they give a distinction in the sounds, how shall it be known what is piped or harped?
Pretty simple, if all sounds sounded the same, how would one be able to make a distinction between them?
8 For if the trumpet give an uncertain sound, who shall prepare himself to the battle?
The trumpet sounded certain tunes to mark commands for battle (still done today in some armies of the world).
9 So likewise ye, except ye utter by the tongue words easy to be understood, how shall it be known what is spoken? for ye shall speak into the air.
KJV
There is Paul's proof that he was pointing to KNOWN languages of the world there, and NOT some unknown tongue that certainly is not easily understood!
So if you want to be among the five wise virgins of Matthew 25 when Lord Jesus comes, then you had best start studying God's Word by asking Him for 'UNDERSTANDING' in His Word, instead of worshiping signs and miracles. The five wise virgins carried a spare vessel of The Oil with them, which means they had an 'understanding' the five foolish virgins did not have.
And you want to know one my greatest proofs that those fooled into the speaking with tongues movement is not what the Oil of Matthew 25 is about? It's simple, because the majority of those I have met that claim to speak the gibberish speech heed men's false doctrine of a Pre-tribulation Rapture theory. I mean, how is it those claim to 'prophesy' by The Holy Spirit and they cannot even stick with the simplicity of Bible Scripture about Christ's timeline for His coming and gathering of His Church? (Matthew 24:29-31; Mark 13:24-27). Even Apostle Paul in 2 Thessalonians 2 made it plain that Jesus is not coming until after the "man of sin" is revealed, and then He comes to destroy that "man of sin". It's so easy! But the fact that most of those who claim the gibberish speech is the true cloven tongue of Pentecost instead believe they are going to be raptured PRIOR to the great tribulation!
