"When I came to Troas ... a door was opened unto me of the Lord. The connection of this verse is with verse 2 Co 2:4: "that ye might know the love which I have." Further evidence of this love is Paul's behavior while engaged in a very fruitful ministry in Troas: I had no rest in my spirit. Paul's concern for the evangelization of the lost was overridden by his concern for the Corinthian assembly, and that was saying something (cf. I Cor 9:16)! It is not love for the lost nor love for the world which distinguishes the believer. It is love for one another (Jn 13:35). But taking leave of them I went ... into Macedonia. This was in hopes of meeting Titus on the way. On Titus' report to Paul about the condition of things in Corinth, see 2 Co 7:5-6."

The King James Version Bible Commentary, 2 Corinthians 2:12-13, p. 1508