5. Now I wish that you might all speak in [unknown] tongues, but more especially [I want you] to prophesy (to be inspired to preach and interpret the divine will and purpose). He who prophesies [who is inspired to preach and teach] is greater (more useful and more important) than he who speaks in [unknown] tongues, unless he should interpret [what he says], so that the church may be edified and receive good [from it].
6. Now, brethren, if I come to you speaking in [unknown] tongues, how shall I make it to your advantage unless I speak to you either in revelation (disclosure of God's will to man) in knowledge or in prophecy or in instruction?
7. If even inanimate musical instruments, such as the flute or the harp, do not give distinct notes, how will anyone [listening] know or understand what is played?
8. And if the war bugle gives an uncertain (indistinct) call, who will prepare for battle?
9. Just so it is with you; if you in the [unknown] tongue speak words that are not intelligible, how will anyone understand what you are saying? For you will be talking into empty space!
10. There are, I suppose, all these many [to us unknown] tongues in the world [somewhere], and none is destitute of [its own power of] expression and meaning.