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?(1 Corinthians 14:6)

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?(1 Corinthians 14:7)

For if the trumpet give an uncertain sound, who shall prepare himself to the battle?(1 Corinthians 14:8)

There are, it may be, so many kinds of voices in the world, and none of them is without signification.(1 Corinthians 14:10)

Therefore if I know not the meaning of the voice, I shall be unto him that speaketh a barbarian, and he that speaketh shall be a barbarian unto me.(1 Corinthians 14:11)

Even so ye, forasmuch as ye are zealous of spiritual gifts, seek that ye may excel to the edifying of the church.(1 Corinthians 14:12)