Where were the churches that Paul wrote to and the seven churches in Revelation located?
They were located in the Mediterranean area, especially Asia Minor. This was the region where Paul spent most of his time, and Antioch of Pisidia is described as being in about the center of Asia Minor. The seven churches of Revelation 1–3 were in that same geographical area.
Les explains that the area of the world where Paul spent most of his time is the same region where the churches addressed in his letters were located. He notes that most of them were also in the area of the seven churches in Revelation 1–3. This geography lies in the Mediterranean area. He then mentions Antioch of Pisidia, not the Antioch they came from, but a second one in about the center of Asia Minor.