1 Corinthians 14:1-6

1 Follow after love, and earnestly desire spiritual gifts, but especially that you may prophesy.  2 For he who speaks in another language speaks not to men, but to God; for no one understands; but in the Spirit he speaks mysteries.  3 But he who prophesies speaks to men for their edification, exhortation, and consolation.  4 He who speaks in another language edifies himself, but he who prophesies edifies the assembly.  5 Now I desire to have you all speak with other languages, but rather that you would prophesy. For he is greater who prophesies than he who speaks with other languages, unless he interprets, that the assembly may be built up.

6 But now, brothers, if I come to you speaking with other languages, what would I profit you, unless I speak to you either by way of revelation, or of knowledge, or of prophesying, or of teaching?