1 Corinthians 14:13 - Ellicott's Commentary On The Whole Bible

In an unknown tongue. — Better, in a tongue. The gift of interpretation would make the gift of tongues useful for the edifying of the Church. This would be an object of unselfish prayer, which God would indeed answer. In the Greek it is suggested that the gift of interpretation is not only to be the object of his prayer, but that it will be the result; and this leads on to the thought in the next verse.