Bible: 1 Cor 14:13-20
14:13 So then, one who speaks in a tongue should pray that he may interpret. 14:14 If 1 I pray in a tongue, my spirit prays, but my mind is unproductive. 14:15 What should I do? 2 I will pray with my spirit, but I will also pray with my mind. I will sing praises with my spirit, but I will also sing praises with my mind. 14:16 Otherwise, if you are praising God with your spirit, how can someone without the gift 3 say “Amen” to your thanksgiving, since he does not know what you are saying? 14:17 For you are certainly giving thanks well, but the other person is not strengthened. 14:18 I thank God that I speak in tongues more than all of you, 14:19 but in the church I want to speak five words with my mind to instruct others, rather than ten thousand words in a tongue.
14:20 Brothers and sisters, 4 do not be children in your thinking. Instead, be infants in evil, but in your thinking be mature.