Furthermore, when I came to Troas to preach Christ's gospel, and a door was opened unto me of the Lord,
Paul expected to meet Titus at Troas to receive the tidings as to the effect of his first letter on the Corinthians; but, disappointed in his expectation there, he passed on to Macedonia, where he met him at last (2 Corinthians 7:5-7). The history (Acts) does not record his passing through Troas in going from Ephesus to Macedonia; but it does in coming from that country; also, that he had disciples there (Acts 20:6-7), which accords with the letter (2 Corinthians 2:12). An undesigned coincidence, marking genuineness (Paley). Doubtless, Paul had fixed a time with Titus to meet him at Troas; and had desired him, if detained so as not to be able to be at Troas at that time, to proceed at once to Macedonia, to Philippi, the next station on his own journey. Hence, though a wide door of Christian usefulness opened to Paul at Troas, his eagerness to hear from Titus the tidings from Corinth led him not to stay longer there, when the time fixed was past, but he hastened on to Macedonia to meet him there (Birks).
To (preach) - literally, 'for (unto) the Gospel.' He had been at Troas before; but the vision of a man from Macedonia, inviting him to come over, prevented his remaining there (Acts 16:8-12). On his return to Asia, after the longer visit mentioned here, he stayed seven days (Acts 20:6).
And - i:e., though Paul would, under ordinary circumstances, have gladly stayed in Troas.
A door was opened ... of the Lord - Greek, in the Lord; i:e., in His work, and by His gracious Providence.