1Pursue love and strive for the spiritual gifts, and especially that you may prophesy. 2For those who speak in a tongue do not speak to other people but to God; for nobody understands them, since they are speaking mysteries in the Spirit. 3On the other hand, those who prophesy speak to other people for their upbuilding and encouragement and consolation. 4Those who speak in a tongue build up themselves, but those who prophesy build up the church. 5Now I would like all of you to speak in tongues, but even more to prophesy. One who prophesies is greater than one who speaks in tongues, unless someone interprets, so that the church may be built up.
6Now, brothers and sisters, if I come to you speaking in tongues, how will I benefit you unless I speak to you in some revelation or knowledge or prophecy or teaching? 7It is the same way with lifeless instruments that produce sound, such as the flute or the harp. If they do not give distinct notes, how will anyone know what is being played? 8And if the bugle gives an indistinct sound, who will get ready for battle? 9So with yourselves; if in a tongue you utter speech that is not intelligible, how will anyone know what is being said? For you will be speaking into the air. 10There are doubtless many different kinds of sounds in the world, and nothing is without sound. 11If then I do not know the meaning of a sound, I will be a foreigner to the speaker and the speaker a foreigner to me. 12So with yourselves; since you are eager for spiritual gifts, strive to excel in them for building up the church.
13Therefore, one who speaks in a tongue should pray for the power to interpret. 14For if I pray in a tongue, my spirit prays but my mind is unproductive. 15What should I do then? I will pray with the spirit, but I will pray with the mind also; I will sing praise with the spirit, but I will sing praise with the mind also. 16Otherwise, if you say a blessing with the spirit, how can anyone in the position of an outsider say the ‘Amen’ to your thanksgiving, since the outsider does not know what you are saying? 17For you may give thanks well enough, but the other person is not built up. 18I thank God that I speak in tongues more than all of you; 19nevertheless, in church I would rather speak five words with my mind, in order to instruct others also, than ten thousand words in a tongue.