Which cities were all located in the same geographical area as Paul's work in Asia Minor?
Colossae, Ephesus, Pergamos, and Thyatira were all located in the same geographical area of Asia Minor, specifically the western coast of Turkey, where Ephesus was situated and where Paul had his greatest work. These cities share that region because it is where Paul's most significant ministry took place.
Les explains that Paul's greatest work occurred in the area of Asia Minor, along the western coast of Turkey where Ephesus was located. The cities familiar to the reader—Colossae, Ephesus, Pergamos, and Thyatira—were all in that same geographical area. He also notes Antioch of Pisidia, in western Turkey, as distinct from the Antioch in Syria; there were two Antiochs in Paul's history. Paul would later rehearse Israel's history in the Jewish synagogue at Antioch of Pisidia.