1 Corinthians 14:1-2

Living Bible

14 Let love be your greatest aim; nevertheless, ask also for the special abilities the Holy Spirit gives, and especially the gift of prophecy, being able to preach the messages of God.

² But if your gift is that of being able to “speak in tongues,” that is, to speak in languages you haven’t learned, you will be talking to God but not to others, since they won’t be able to understand you. You will be speaking by the power of the Spirit, but it will all be a secret.