John 1.4(/b) specifies that his message is addressed to the seven churches, and we have the list of these churches: to Ephesus, to Smyrna, to Pergamum, to Thyatira, to Sardis, to Philadelphia, and to Laodicea.
Should we conclude that this message is targeted and concerns only these churches, their location? Do they have a symbolic value that might suggest it is about the Church in general? In that case, would it not have been simpler to specify the Church? Why these details?
We note that geographically they are all located in the same area, in Asia Minor and more precisely in the place that corresponds today to Turkey.
These are local Christian communities to which John addresses his book from the . Here is what is distinctive about them:
Ephesus: a large port city, an important commercial and religious center.
Smyrna (today Izmir): a prosperous city, known for its faithfulness to .
Pergamum: a regional capital, renowned for its temples and its imperial cult.
Thyatira: an industrial city, specialized in dyeing and trade.
Sardis: the ancient capital of Lydia, wealthy but in decline.
Philadelphia: a small city, but recognized for its perseverance.
Laodicea: a banking and medical center, prosperous but criticized for its lukewarmness.
These seven cities formed a geographical circle in Asia Minor, corresponding to a logical itinerary for a messenger who would have carried John’s letter