Somehow, I don't think the Angel's lack understanding of English.
Well, what I was getting at was that angels hear people speak all the time, but if they hear us speak us speaking in their own tongue... then it is a sign for them that what is spoken is authentic.
If God is choosing the words, then man is little more than a biological audio box, seems sort of redundant for God to talk to himself via your body.
Haha! For Him it is redundant, but for us it is safe! But being little more than a biological audio box has it's comforts. And they are indeed very personal comforts that cannot be shared. And if God speaks to Himself so that I cannot understand at one instance, or if I pray in the Spirit and pray how He moves me in a language that I do understand, what is the essential difference? They both require my assent and effort, and both have their genesis with God and both flow to God. My hand serves Him, which He created from clay, which He created from nothing, which is to say Himself, for He Is the only thing that Is. The elders continually surround Him and bow down and speak to Him the words that He has commanded them to say forever and ever. It all starts with God, it all ends with God. The only miracle is that I have some agency can actually be relevant!
Did God choose those words or is it the spirit in you doing it?
Too.. fine a distinction for me. My spirit was dead before Christ. Now the Holy Spirit is in me. I did see a thread about something something binatarian, but I didn't read it at all. I have no official opinion about the nature of the godhead. But if you're asking are my lips moved by my own unregenerate nature, or the Holy Spirit, then the answer is simple. The Holy Spirit.
It's going to boil down to faith that if you have asked for an egg, God will not give you a serpent. When I asked for the gift of tongues and found myself gibbering incoherently, I needed to have the faith to know that this was what I asked for, not a sneaky substitution.
It would be a very poor spiritual gift if what the gift was, was the thoughts and intents of my own heart, expressed in words I could not understand. I would HIDE from an interpreter, rather than have the selfish desires of my 'old man' translated. If I have any spiritual goodness in me to be expressed, it would be Christ in me, or the indwelling of the Holy Spirit (another distinction too fine for me) but either way, the words chosen by God.
Or if it's really my spirit speaking as tutored or moved by the Holy Spirit.... once again, a level of detail that I cannot differentiate. The hand moves consciously and the heart beats unconsciously but they both respond to the head because they are all one.