Note 1 at 2 Cor. 2:12: Paul had abandoned his earlier plans to go to Corinth (see note 1 at Acts 18:1, p. 679) and had left Ephesus (see note 3 at Acts 18:19, p. 683) bound for Troas instead. Troas (see note 7 at Acts 16:8, p. 666) was a sea port city on the Aegean Sea that was located in the western part of that Roman province in Asia (see note 3 at Acts 16:6, p. 666). This port city was important because it was the nearest point to go into Europe.

Note 2 at 2 Cor. 2:12: The phrase "a door was opened unto me of the Lord" conveys the idea of the Lord opening the opportunity to proclaim the message of Christ (see ref. d). Certainly, a big factor in opening this door was the raising of Eutychus from the dead (Acts 20:5-11). However, Paul did not take full advantage of this opportunity because of his concern for Titus (v. 13).