New International Version
For anyone who speaks in a tongue does not speak to people but to God. Indeed, no one understands them; they utter mysteries by the Spirit.

New Living Translation
For if you have the ability to speak in tongues, you will be talking only to God, since people won’t be able to understand you. You will be speaking by the power of the Spirit, but it will all be mysterious.

English Standard Version
For one who speaks in a tongue speaks not to men but to God; for no one understands him, but he utters mysteries in the Spirit.

Berean Study Bible
For he who speaks in a tongue does not speak to men, but to God. Indeed, no one understands him; he utters mysteries in the Spirit.

New American Standard Bible
For the one who speaks in a tongue does not speak to people, but to God; for no one understands, but in his spirit he speaks mysteries.

NASB 1995
For one who speaks in a tongue does not speak to men but to God; for no one understands, but in his spirit he speaks mysteries.

NASB 1977
For one who speaks in a tongue does not speak to men, but to God; for no one understands, but in his spirit he speaks mysteries.

Amplified Bible
For one who speaks in an unknown tongue does not speak to people but to God; for no one understands him or catches his meaning, but by the Spirit he speaks mysteries [secret truths, hidden things].

Christian Standard Bible
For the person who speaks in a tongue is not speaking to people but to God, since no one understands him; he speaks mysteries in the Spirit.

Holman Christian Standard Bible
For the person who speaks in another language is not speaking to men but to God, since no one understands him; however, he speaks mysteries in the Spirit.

Contemporary English Version
If you speak languages that others don't know, God will understand what you are saying, though no one else will know what you mean. You will be talking about mysteries that only the Spirit understands.

Good News Translation
Those who speak in strange tongues do not speak to others but to God, because no one understands them. They are speaking secret truths by the power of the Spirit.

GOD'S WORD® Translation
When a person speaks in another language, he doesn't speak to people but to God. No one understands him. His spirit is speaking mysteries.

International Standard Version
For the person who speaks in a foreign language is not actually speaking to people but to God. Indeed, no one understands him, because he is talking about secrets by the Spirit.

NET Bible
For the one speaking in a tongue does not speak to people but to God, for no one understands; he is speaking mysteries by the Spirit.