Adam Clarke's Commentary on the Bible - 1 Corinthians 14:14
For if I pray in an unknown tongue - If my prayers are composed of sentences and sayings taken out of the prophets, etc., and in their own language - my spirit prayeth, my heart is engaged in the work, and my prayers answer all the purpose of prayers to myself; but my understanding is unfruitful to all others, because they do not understand my prayers, and I either do not or cannot interpret them. See the note on 1 Corinthians 14:19 . read more
Adam Clarke's Commentary on the Bible - 1 Corinthians 14:13
Pray that he may interpret - Let him who speaks or reads the prophetic declarations in the Old Testament, in that tongue in which they were originally spoken and written, pray to God that he may so understand them himself, and receive the gift of interpretation, that he may be able to explain them in all their depth and latitude to others. read more