1 Corinthians 14:4-6
4 Those who speak in an unknown language only strengthen themselves, but those who prophesy strengthen the community. 5 While I’d like for you all to be able to speak by the Spirit in unknown languages, my preference would be for you all to prophesy by the Spirit. Those who speak prophetically are God’s mouthpiece and are far more useful to the church than those who speak in exotic languages—unless there is another who interprets so that the community may be strengthened.
6 If I come to you, brothers and sisters, talking in unknown languages, what good would that be for any of you? You receive no benefit unless I speak to you some word of revelation, knowledge, prophecy, or instruction in your own language.Read full chapter