“So likewise ye, except ye utter by the tongue words easy to be understood, how shall it be known what is spoken? for ye shall speak into the air.”
King James Version (KJV)
14:9 Unless ye utter by the tongue - Which is miraculously given you. Words easy to be understood - By your hearers. Ye will speak to the air - A proverbial expression. Will utterly lose your labour.
1Co 14:9 So likewise ye, except ye utter by the tongue, etc. It is only speech to the air, unless there is the distinction of intelligible words.