2 The apostle, writing to the Corinthians, says: “Moreover, I call God for a record upon my soul, that to spare you I came not as yet to Corinth. Not for that we have dominion over your faith, but are helpers of your joy.” I also say the same to you; to spare you I have not come to you. I have also spared myself, that I might not have sorrow upon sorrow, and have chosen not to see you face to face, but to pour out my heart to God on your behalf, and to plead the cause of your great danger not in words before you, but in tears before God; entreating Him that He may not turn into grief the joy wherewith I am wont to rejoice in you, and that amid the great offenses with which this world everywhere abounds, I may be comforted at times by thinking of your number, your pure affection, your holy conversation, and the abundant grace of God which is given to you, so that you not only have renounced matrimony, but have chosen to dwell with one accord in fellowship under the same roof, that you may have one soul and one heart in God.
Source: Letters (New Advent)