1 Corinthians 14:7-9

Living Bible

⁷ Even musical instruments—the flute, for instance, or the harp—are examples of the need for speaking in plain, simple English^[a] rather than in unknown languages. For no one will recognize the tune the flute is playing unless each note is sounded clearly. ⁸ And if the army bugler doesn’t play the right notes, how will the soldiers know that they are being called to battle? ⁹ In the same way, if you talk to a person in some language he doesn’t understand, how will he know what you mean? You might as well be talking to an empty room.