1 Corinthians 14
6 Ref But now, brothers,{The word for "brothers" here and where context allows may also be correctly translated "brothers and sisters" or "siblings."} if I come to you speaking with other languages, what would I profit you, unless I speak to you either by way of revelation, or of knowledge, or of prophesying, or of teaching?
7 Ref Even things without life, giving a voice, whether pipe or harp, if they didn't give a distinction in the sounds, how would it be known what is piped or harped?
8 Ref For if the trumpet gave an uncertain sound, who would prepare himself for war?