2 Corinthians 2:11

Get an advantage] by the man being lost to Christ, or by the estrangement of the Apostle and the Corinthians; perhaps both.

12, 13. St. Paul had gone from Ephesus to Troas on the coast of Asia Minor a short time after dispatching the severe letter to Corinth by Titus. He had expected Titus to meet him there with the news of the condition of the Church and of the way in which his letter had been received; but not finding him he became anxious and hastened on to Macedonia, where, probably at Philippi, he met Titus bringing good news. Troas] for other visits there see Acts 16:8; Acts 20:6. A door was opened] the preaching of the gospel found ready acceptance.

(c) 2:14-5:21. The Glory, the Joy, the Comfort, and the Inspiration of his Ministry
(c) 1. 2:14-3:6. The Apostle's True Letter Of Recommendation

The return of Titus with joyful news suggests thanksgiving to God, who has made the Apostle the means of spreading abroad the gospel message. St. Paul and his fellow-workers proclaim the gospel both to those who accept and to those who reject it. To the former it is a message of life; to the latter, of death. And no one can bear such a burden of responsibility unless he preaches with a pure purpose, and under a deep sense of accountability to God.