1 Corinthians 14:7-9

New Living Translation

⁷ Even lifeless instruments like the flute or the harp must play the notes clearly, or no one will recognize the melody. ⁸ And if the bugler doesn’t sound a clear call, how will the soldiers know they are being called to battle?

⁹ It’s the same for you. If you speak to people in words they don’t understand, how will they know what you are saying? You might as well be talking into empty space.