1 Corinthians 14:13-19

So anyone who speaks in tongues should pray also for the ability to interpret what has been said. For if I pray in tongues, my spirit is praying, but I don’t understand what I am saying. Well then, what shall I do? I will pray in the spirit, and I will also pray in words I understand. I will sing in the spirit, and I will also sing in words I understand. For if you praise God only in the spirit, how can those who don’t understand you praise God along with you? How can they join you in giving thanks when they don’t understand what you are saying? You will be giving thanks very well, but it won’t strengthen the people who hear you. I thank God that I speak in tongues more than any of you. But in a church meeting I would rather speak five understandable words to help others than ten thousand words in an unknown language.