1 Corinthians 14:7-9

Christian Standard Bible

⁷ Even lifeless instruments that produce sounds—whether flute or harp^(A)—if they don’t make a distinction in the notes, how will what is played on the flute or harp be recognized? ⁸ In fact, if the bugle makes an unclear sound, who will prepare for battle?^{(B) 9} In the same way, unless you use your tongue for intelligible speech, how will what is spoken be known? For you will be speaking into the air.