If I pray in a different language, my spirit is praying, but my mind does nothing.
The one who has the gift of speaking in a different language should pray for the gift to interpret what is spoken.
But in the church meetings I would rather speak five words I understand in order to teach others than thousands of words in a different language.
I will explain why. Those who have the gift of speaking in different languages are not speaking to people; they are speaking to God. No one understands them; they are speaking secret things through the Spirit.