Speak Wisely

Decided to take a day off yesterday and do some light reading on the bible. Come across an interesting scripture:

But now, brethren, if i come to you speaking with tongues, what shall i profit you unless i speak to you either by revelation, by knowledge, by prophesying, or by teaching?

Even things without life, whether flute or harp, when they make a sound, unless make

a distinction in the sound, how will it be known what is piped or played?

For if the trumpet makes an uncertain sound, who will prepared for battle?

So likewise you, unless you utter by the tongue words easy to understand, how will it be known what is spoken?