If your argument that if it's not a conversation it is 'speaking into the air' then most preaching in churches would be 'speaking into the air' because the sermons are monologues not conversations.
Sermons that give understandings and not just making sounds without any meaning.
I am not opposed to conversation as a form of teaching, but it doesn't make sense to assume that speaking in tongues in any passage of scripture was a conversation.
It is not a standalone gift as in just makes a noise and it is evidence a person has the Holy Spirit by a
work they could perform.
It might be gratifying to the flesh but it would go no further than for a person to glory in their own flesh and encourage others to follow. Remember God is no longer bringing any new revelations as prophecy.
Prophesying and interpretation of tongues are listed as different gifts of the Spirit. For to one is given...prophecy...to another... the interpretation of tongues.
Yes to one comes the word of prophecy that God graciously put on the tongue of man (God’s word not the word of the prophet as a private interpretation/revelation) and to another God interprets it into a language they can understand.
If one would prophecy and God did not give another the interpretation of tongues in a language they could understand , then they should be silent seeing the prophecy would fall on deaf ears. We are to hear what the Spirit says to the churches, as the Spirit gives us ears to hear..
The disciples spoke in tongues. There is no good reason to think that the languages they spoke were different from the languages the people heard.
Other than at the same time many nations heard the interpretation and not that Peter repeated the message each time to a different nation?
No interpretation is necessary if someone is speaking in your language.
Not to the one speaking.
Then Peter stood up and preached. There is no indication that he preached supernaturally 'in tongues.' That is not in the passage. Why wouldn't Acts 2 state that if that were the case?
They heard the supernatural interpretation from God in their own language.
When Peter was given prophecy in Acts 2 he declared the word of God in His own language. .More than ten different nations languages received an interpretation of God so they could supernaturally understand the prophecy in their language.
Tongues are a sign to them that believe not. Those who believed not (the apostate Jews) they understood what Peter said they spoke the same language . It was that they could not believe the other nations understood .It was a sign against them.
The prophecy that the other nations heard was for those who do believe God, as God gives the interpretation.
And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance. Act 2:4
The Spirit supernaturally gave them understanding as a gift.
And there were dwelling at Jerusalem Jews, devout men, out of every nation under heaven. Now when this was noised abroad, the multitude came together, and were confounded, because that every man heard them speak in his own language. Act 2:6
They could understand each other, a temporal reversal of the Tower of Babel when God confused all the languages..
And they were all amazed and marvelled, saying one to another, Behold, are not all these which speak Galilaeans?
Amazed and marveled is a faith issue. They were amazed that the Holy Spirit had given them understanding in their own languages..
And how hear we every man in our own tongue, wherein we were born? Act 2:7-8
Not just Peter, they heard every man in their language .They understood even though they did not understand anothers language unless God gave them the understanding in thier own language . Every man from every nation was given an interpretation from God, the giver of gifts.
You are imagining things. Do a little research on the historical background. Greek was a lingua franca in the eastern part of the empire and many educated Romans knew it as well.
Greek in its original autograph was the language that God used as a gift to inspire His written word.(new testament) Those who heard, heard the prophecy in their own language.
It was a sign to the unbelieving Jew who must believe God does not speak through the Gentiles.
The same remains today it’s still a sign to those who rebel .They are still waiting for Christ to appear in the flesh . That places the outward Jew (not all Israel is Israel) as antichrists.
1John 2:22 Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.
It is likely they both spoke Greek.
Act 10:44 While Peter yet spake these words, the Holy Ghost fell on all them which heard the word........... (God gave them the understanding or they could hear nothing other than the voice of their conscience).
Peter spoke in Greek the Holy Ghost fell on all them which heard the word, as the interpretation of God.
Act 10:45 And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost.
If the language was the same( Greek) there would be no need be astonished
Act 10:46 For they heard them speak with tongues, and magnify God. Then answered Peter, (Who was given a interpretation of their language).
Peter preached. He may have had a 'conversation' a little at the beginning, but the people were saved after hearing the preaching.
The preaching of prophecy, yes. Not tongues . Tongues remains a sign against those who make prophecy, the word of God without effect .The cross their stumbling block
Preaching can be a monologue. It doesn't have to be a conversation.
Yes as we are given the ears to hear prophecy. we understand it is a conversation between God and the sinners, saved by grace. Called the hearing of faith.
Philippians 3:20 For our conversation is in heaven; from whence also we look for the Saviour, the Lord Jesus Christ: