MLV(i)
12 So you also, since you are zealous ones of spiritual gifts, seek in order that you may abound to the building up of the congregation.
13 Hence let the one who speaks in a foreign language pray in order that he may translate.
14 For if I pray in a foreign language, my spirit prays, but my mind is unfruitful. 15 Therefore what is it? I will pray with the spirit and I will also pray with the mind. I will sing-praise with the spirit and I will also sing-praise with the mind. 16 Otherwise if you give-thanks with the spirit, how will he who fills the place of the unskilled say the amen upon your thanksgiving, since he does not know what you are saying? 17 For you indeed give-thanks well, but the other is not built up.
14 For if I pray in a foreign language, my spirit prays, but my mind is unfruitful. 15 Therefore what is it? I will pray with the spirit and I will also pray with the mind. I will sing-praise with the spirit and I will also sing-praise with the mind. 16 Otherwise if you give-thanks with the spirit, how will he who fills the place of the unskilled say the amen upon your thanksgiving, since he does not know what you are saying? 17 For you indeed give-thanks well, but the other is not built up.