Listen for free to MP3 audio of Chapter 14
of the Book of 1 Corinthians, KJV

⁶ Now, brethren, if I come unto you speaking with tongues, what shall I profit you, except I shall speak to you either by revelation, or by knowledge, or by prophesying, or by doctrine?
⁷ And even things without life giving sound, whether pipe or harp, except they give a distinction in the sounds, how shall it be known what is piped or harped?
⁸ For if the trumpet give an uncertain sound, who shall prepare himself to the battle?