Tongues Must Be Interpreted

⁶ But now, brethren, if I come to you speaking with tongues, what shall I profit you unless I speak to you either by ^(A)revelation, by knowledge, by prophesying, or by teaching? ⁷ Even things without life, whether flute or harp, when they make a sound, unless they make a distinction in the sounds, how will it be known what is piped or played? ⁸ For if the trumpet makes an uncertain sound, who will prepare for battle? ⁹ So likewise you, unless you utter by the tongue words easy to understand, how will it be known what is spoken? For you will be speaking into the air.