If I speak any words without understanding what I am saying I may feel like I'm talking to God, but how do I know ? Remember the gifts are given to "Profit withal" it is of no benefit to you or me if I speak words that neither of us understand. Just wanted to add a few words, God bless.
It's always good to see someone is enjoying a discussion. The only answer I know of to your question is
1 Corinthians 14:2 (KJV)
2 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.
I believe Eph 6:20 verifies that the Holy Spirit gives a door of utterance to us, Himself speaking to God in a manner mysterious to us who move our mouth in utterance. In Acts 2 the 120 experienced that for their first time, having no rules how to go about it, resulting in many hearers understanding a message from God in their own selves, in their own languages, without an interpreter. Paul's main concern about not having an interpreter speaking after people hear a message in unknown tongues is of course wisdom, especially if a church is lacking order concerning spiritual gifts.
There have been some wonderful happenings in many services I've attended, and had reported to me, when "high praise" was underway, what some call "the cloud was heavy with the Spirit", times when even usually stone faced men break from their facade with tears, crying sometimes, shaking, maybe hands high waving. With practically everyone moving their lips uttering something, "rattling the windows" so to speak, my feeling is often the rapture surely is about to happen, "rapturous", that is exceedingly joyful, excited in the spirit. I and others sometimes drop to the knees in worship, would be on my face if there was room in the pews.
Then comes someone speaking or singing in a beautiful unknown tongue, sometimes sounding like it might be known somewhere on earth. Suddenly the congregation is moving out of the pews, soon most at the altar. That's when most people, members or not, that were not believers or had not fully committed tend to respond much like the crowd did in Acts 2, very emotionally crying out to God. That is before the preacher gives a sermon, which sometimes is skipped, the service becoming one of personal ministry.
My explanation is that like the men listening to the 120 disciples, even lost people can hear the Holy Spirit speak to them in their own understanding while in the presence of such anointing, in the right place at God's timing. If your church exercises the gifts like tongues, of course it is right to have an interpreter. But when the congregation immediately responds like I described, none would hear an interpreter. The only person able to speak intelligibly and be heard would be whoever is holding a microphone, usually the pastor, who often supplies words of understanding. It's in such times we've seen really rough bikers, troubled ex-convicts, adulterers, 80-90 year olds, at last yield to Jesus. That church will not argue with particular rules of order when the results of the meeting are phenomenal, simply because all involved
were blessed.
The way I'm looking at this issue is there are two types of church meetings to consider. Those not including tongues in worship are understandably not likely to appreciate a message in tongues at all, especially if there's no understanding. The congregation is satisfied to sing from hymnals, maybe cite some scriptures in unison, otherwise keep lips shut, letting all the ministry flow from the pulpit and choir. They are not likely to wander into and remain in any brand of pentecostal meeting. The second is a church that has an order of service prepared to edify everyone, even lost sinners. They are the ones already confused, unable to believe, not understanding the Bible, resiting it, with arms folded and sitting on the very back row. What harm if they hear tongues without an official interpreter if the service in whole offers anointing for them to be reached?
It's a very rare thing for someone to just break forth with tongues, then sit down without interpretation in any services I've attended. It doesn't happen because most churches accepting of tongues know about 1 Cor 14. Somehow the Spirit sets it all straight, and people are saved, edified, and enter into the joy of the Lord.