8 For if the trumpet give an uncertain sound, who shall prepare himself to the battle?
8
Again, if the trumpet does not sound a clear call, who will get ready for battle?
9 So likewise ye, except ye utter by the tongue words easy to be understood, how shall it be known what is spoken? for ye shall speak into the air.
9
So it is with you. Unless you speak intelligible words with your tongue, how will anyone know what you are saying? You will just be speaking into the air.