King James Version
For he that speaketh in an unknown tongue speaketh not unto men, but unto God: for no man understandeth him; howbeit in the spirit he speaketh mysteries.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.New International Version
For anyone who speaks in a tongue does not speak to men but to God. Indeed, no one understands him; he utters mysteries with his spirit.