Leaving Galatia, the three travelers continued westward toward the Aegean Sea, and "passing by Mysia came to Troas," the full name of which was Alexandria Troas.
Paul had his face turned toward Europe and from this place could look across the Aegean and see the "distant prospect of the Macedonian hills."
A Vision.
One evening he went to bed, perhaps wondering about the people who lived on the other side of the water and inspired with the feeling that the Lord desired him to go to them. There appeared to him, that night, a vision, in which "There stood a man of Macedonia, and prayed him, saying,
"Come over into Macedonia, and help us."
Luke.
But before he took boat across, he and his companions had been joined by another faithful convert to whom you must now be introduced. It may be that Paul met him when Paul was sick, for the man was a physician, and could be of great service to him in his affliction. This new companion kept notes and afterwards wrote the "Acts of the Apostles" in which we learn most of the things we are telling you about. His name was Luke, called by Paul the "beloved Physician."
Over to Macedonia.
Paul told his vision to his brethren, and "immediately" Luke says, "we endeavored to go into Macedonia, assuredly gathering that the Lord had called us for to preach the Gospel unto them."
They sailed from Troas "with a straight course" across to Samothracia and "the next day to Neapolis; and from thence to Philippi, the chief city of that part of Macedonia."