1 Corinthians 14:10-15

There are many different languages in the world, and every language has meaning. But if I don’t understand a language, I will be a foreigner to someone who speaks it, and the one who speaks it will be a foreigner to me. And the same is true for you. Since you are so eager to have the special abilities the Spirit gives, seek those that will strengthen the whole church. 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.