1 Corinthians 14:6-8

My dear friends, what good is it if I come to you always speaking in tongues? But if I come with a clear revelation from God, or with insight, or with a prophecy, or with a clear teaching, I can enrich you. Similarly, if musical instruments, such as flutes or stringed instruments, are out of tune and don’t play the arrangement clearly, how will anyone recognize the melody? If the bugle makes a garbled sound, who will recognize the signal to show up for the battle?