1 Corinthians 14:13

Let him that speaketh.. . pray that he may interpret. Paul is here speaking of public prayer, in which one man, even though a layman, inspired by the Holy Spirit, would offer up prayer in an audible voice before all, the others listening, and joining their prayers to his. This is the meaning, as appears from the following verses. But Chrysostom, Ambrose, and Anselm explain it thus: Let him pray that he may receive the gift of the interpretation of tongues, so as to make his own prayer intelligible to others.