Maybe, just maybe, we might not be so sure of ourselves if we were to stop to remember that at times we do speak "just words", that is words that have no source in genuine thought.  Some folks seem to place high value on what is usually called "speaking in tongues" but, in my own experience, I have never been moved by such outbursts.  The apostle, Paul,  apparently had the same reaction way back when he was on his missionary travels.  
On the other hand, I find Paul's words on the subject of the Gospel of  (that is the good news of) Jesus Christ which, by Paul"s own testimony, had changed him from a frustrated seeker who  had hid his  own "deep down doubts" in a zealous campaign of persecution aimed at  those who had found a more hopeful, person-affirming, community-creating, faith  which for them was based on what they had come to  believe God had made possible by the life, ministry, death and resurrection of  Jesus of Nazareth, whom they declared to be present to them in their own life situations.  The words we have are of the changed man, Paul.
Now, when one speaks out of such a background of remembrance of things past and the  recognition of one's own changed outlook, what issues forth is not "just words" but words of striving to tell others (and oneself too) the wondrous thing that has come to being in one's life.  We Christians have a hymn which is a prayer for the means to express the joy we share with  Paul and the great cloud of witnesses who lived in that faith since Paul's time: "O FOR A THOUSAND TONGUES TO SING MY GREAT REDEEMER'S PRAISE".
So, if you do think it's "just words" by all means start asking for interpretation.  We Christians remind ourselves, occasionally, how important it is to speak plainly and truthfully.  I'm delighted when I have opportunity to give expression to my faith; and, I remind  myself to keep open to the testimony of others and not to be surprised when I learn something new.  God is Still Speaking!  The person I meet today or tomorrow may be the means for my hearing the Word of the Lord for me today or tomorrow.  
Keep open for surprise!         PEACE!