Acts 16:9 - Ellicott's Commentary On The Whole Bible

There stood a man of Macedonia. — The term is probably used in its later sense as applied to the Roman province, which included Macedonia, properly so called, Illyricum, Epirus, and Thessaly, the province of Achaia including, in like manner, the whole of Southern Greece. The vision which St. Paul looked on explained to him all the varied promptings and drawings-back of his journey. This was the door that was to be opened to him. The faith of Christ was to pass from Asia to Europe, and the cry, “Come over and help us,” was to him as a call from the whole western world. In view of this, he did not now tarry to preach at Troas. Probably, indeed, as the next verse implies, that work had been already done.