Luke recorded Paul's vision of the Macedonian man to explain God's initiative in encouraging Paul and his companions to carry the gospel farther west into Europe.
". . . this section [6:6-10] makes it overwhelmingly clear that Paul's progress was directed by God in a variety of ways, so that the missionaries were led into new areas of work."641
"His [Luke's] subject is the rapid extension of Christianity among the Gentiles, especially in three great provinces of the empire, Macedonia, Achaia, and Asia; and he describes the firm establishment of the church in their capitals, Thessalonica, Corinth, and Ephesus . . . These three great provinces embraced respectively the northern, western and eastern coasts of the Aegean Sea, and they were all members of one great Roman empire, and all enjoyed one great Hellenic civilization . . .
"The foundation of the churches of Macedonia, Achaia, and Asia was the work of S. Paul, and it was his greatest achievement. Ch. xvi 11-xix 19 is really the record of his life work. It filled a period of five years from 49 to 54; and in the composition of the book it corresponds to the ministry of the Lord in the Gospel (Lk iv 16 to xvii 10 or xviii 30) and of S. Peter in the church of Jerusalem in the first part of the Acts (ii 14-xi 26)."642
16:6 Phrygia was a geographical region, and Galatia was a Roman province. Phrygia was part of Galatia as well as part of the province of Asia that lay west of Galatia. The province of Asia was one of several Roman provinces that occupied the larger district of Asia Minor. Asia Minor was ancient Anatolia and modern western Turkey. Paul evangelized Asia later (18:19-19:20). The time was not right for him to go there yet. Probably Paul intended to follow the Via Sebaste westward to Ephesus, the chief city and capital of Asia. Luke did not record how the Holy Spirit closed the door to Asia at this time. His emphasis was on the One who directed Paul, not how He did it (cf. 13:1-3).
"The missionary journeys of Paul reveal an extraordinary combination of strategic planning and sensitivity to the guidance of the Holy Spirit in working out the details of the main goals. This is especially noticeable here."643
"Paul may have had visions or dreams (cf. verse 9, 23:11), or inward prompting. Silas, a prophet (15:32), may have been moved to utter words of warning, or they may have had to change their plans by force of circumstances (e.g. Jewish opposition), which they afterwards recognized as the overruling intervention of Providence."644
16:7-8 Paul then turned his attention north and proposed to enter the province of Bithynia. It lay along the southern shores of the Black Sea and contained many Roman cities and Jewish colonies. Mysia was another geographical region such as Phrygia located in northwest Asia "through"(Gr. parelthontes, not "by,"v. 8) which Paul's party passed to get to Bithynia. Again the Holy Spirit, whom Luke here called "the Spirit of Jesus"(cf. 1:1-2), prevented their entering that province. This unusual title of the Holy Spirit highlights Jesus' leadership in the mission. Other unidentified Christian missionaries evangelized Bithynia (cf. 1 Pet. 1:1).645
Consequently Paul turned west from where he was and proceeded to Troas. This city was a Roman colony, like Antioch of Pisidia and Lystra, located at a very strategic site. It was one of the main seaports from which travelers entered Asia Minor from the West and departed from Asia Minor for the Roman provinces farther west. It was near ancient Troy.
"To the Greeks, mountains protected but separated people, whereas the sea, while frightening, united people. Therefore Troas, at the mouth of the Dardenelles, was the pivotal port between the land masses of Europe and Asia Minor and the great waterways of the Aegean and Black seas."646
16:9 This time God gave positive direction to Paul, and Luke recorded that He did it in a vision (cf. 9:10; 10:3, 17, 19; 11:5; 12:9).
"Paul could have recognized the man in his dream as a Macedonian from what he said; but it has been conjectured that the man might have been Luke himself, who indicates his presence at this point by changing the narrative from they' to we' in the following verse. If this were so, it would suggest that Luke, a Macedonian or of Macedonian ancestry, had encountered Paul at Troas, perhaps as a medical attendant, and pressed him to preach the Gospel to the Macedonians. In this case, his appearance in Paul's dream would make him seem to be a God-sent messenger, and would clinch the matter. This is, of course, no more than an attractive speculation."647
Macedonia was a Roman province that comprised roughly the northern half of ancient and modern Greece. Its name honored Philip of Macedon, Alexander the Great's father.
16:10 Luke joined Paul's party, which consisted of Silas, Timothy, and perhaps others, in Troas. This is clear because in his narration he changed from the third to the first person. This is the beginning of the first so-called "we"section in Acts, the sections in which Luke was travelling with Paul (16:10-40; 20:5-21:18; 27:1-28:16).648Paul surrounded himself with a group of disciples, as Jesus had done.
Note that Luke used three terms to stress the fact that the triune God was leading these apostles by His Spirit. He first referred to the Holy Spirit (v. 6), then the Spirit of Jesus (v. 7), and then God (v. 10) as leading them.
"Authentic turning points in history are few. But surely among them that of the Macedonian vision ranks high. Because of Paul's obedience at this point, the gospel went westward; and ultimately Europe and the Western world were evangelized. Christian response to the call of God is never a trivial thing. Indeed, as in this instance, great issues and untold blessings may depend on it."649
This passage has become popular because in it God gave Paul definite guidance concerning where He wanted him to minister. Anyone who wants to propagate the gospel has questions about this kind of guidance. Notice that Paul was actively ministering and was seeking to do what appeared to him to be the wise thing when God said no and yes to his efforts. In providing positive direction God brought new information to Paul that impressed the apostle with a particular need God wanted him to meet. It seems to me that we should not concern ourselves mainly with the methods God uses to guide people. These varied in Acts and were not Luke's primary concern. We should, however, concentrate on where we can be of most use as the Lord's instruments. This was Paul's dominant concern. If our choices for places of ministry are equally acceptable to God, He probably will not steer us away from any of them as was true in Paul's first missionary journey. We can go wherever we please. However if He does not want us in one or more of these places, I believe He will shut one or more doors for us as He did for Paul. Lewis S. Chafer used to say that God often guides us by bringing information to our attention that enlightens our judgment when we need to make decisions.