1 Corinthians 14:4
"He that speaketh in an unknown tongue edifieth himself; but he that prophesieth edifieth the church."
Cross References (ranked by relevance)
Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying serveth not for them that believe not, but for them which believe.
How is it then, brethren? when ye come together, every one of you hath a psalm, hath a doctrine, hath a tongue, hath a revelation, hath an interpretation. Let all things be done unto edifying.
And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;
And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing.
But he that prophesieth speaketh unto men to edification, and exhortation, and comfort.
I would that ye all spake with tongues, but rather that ye prophesied: for greater is he that prophesieth than he that speaketh with tongues, except he interpret, that the church may receive edifying.
Even so ye, forasmuch as ye are zealous of spiritual gifts, seek that ye may excel to the edifying of the church.