6Now, brothers, if I come to you speaking in tongues, how will I benefit you, unless I bring you some revelation or knowledge or prophecy or teaching?
7Even in the case of lifeless instruments, such as the flute or harp, how will anyone recognize the tune they are playing unless the notes are distinct?
8Again, if the trumpet sounds a muffled call, who will prepare for battle?
— 1 Corinthians 14:6-8