3 But he that prophesieth, speaketh to men to edification, and exhortation, and comfort.
4 He that speaketh in an unknown language edifieth himself; but he that prophesieth edifieth the church.
5 I would that ye all spoke in languages, but rather that ye prophesied: for greater is he that prophesieth than he that speaketh in languages, except he interpret, that the church may receive edifying.
6 Now, brethren, if I come to you speaking in languages, 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 shall give an uncertain sound, who will prepare himself for battle?
9 So likewise ye, except ye utter by the tongue words easy to be understood, how shall it be known what is spoken? for ye will speak into the air.