To be honest I've never been moved to utter anything than English... Yes I've prayed until I could not figure out what to say.. but I also knew the Father was understanding as the Holy Spirit was interceding for me...
I still honest do not understand how the groaning's translate into something a person is doing ...
ISV -
Rom 8:26 In the same way, the Spirit also helps us in our weakness, for we do not know how to pray as we should. But the Spirit himself intercedes with groans too deep for words,
Rom 8:27 and the one who searches our hearts knows the mind of the Spirit, for the Spirit intercedes for the saints according to God's will.
"the Spirit himself intercedes with groans too deep for words" It doesn't say the Spirit GIVES the groans.. or the Spirit groans through you ... it says the "Spirit Himself intercedes"
I'm truly not "picking" on you ... when I was younger I attended a church that made a LOT of "private prayer language" ... yet no one could ever give me scripture to see where it applied...
Now as to public speaking of tongues... miracles... etc.. I think that COULD happen - but it's important to be discerning as to what is REALLY happening ... and what is a contrivance of man ... by contrivance I don't neccessarily mean a purposeful deception - but something that may not be of GOD - but of emotion..
I understand your perspective.
Ah, but the Holy Spirit dwells within us. Could it not be a manifestation of Him "giving us the words to speak" in our prayer life?