The city of Laodicea was located about 100 miles directly east of Ephesus, the first city to which these seven letters were addressed. Laodicea was part of a tri-city area, closely associated with the cities of Colossae (to which the letter to the Colossians was written), and Hierapolis. Laodicea was noted throughout the Roman province of Asia for its wealth, its commercial life, and its medical practice. As the banking center of Asia, it was the most prosperous of the seven cities. Many large, beautiful homes were built in this city, the ruins of which are still visible, and probably some of them were owned by Christians. Laodicea also had a flourishing clothing industry. A particular breed of black sheep were raised around this area, and the glossy, black wool was woven into special clothes that were sold here. The city was also noted for its medical practice, especially for its eye and ear salve. The medical cult of Aesculapius was located here. Incidentally, doctors in the military services of the United States still wear the symbol of a staff with entwined serpents around it, the symbol of Aesculapius. Laodicea was thus a kind of Bank of America, Macy's Department Store and Mayo Clinic all rolled into one. That will explain some of the references we find in this letter to the church there. As in all the letters, our Lord introduces himself in a very significant way. His opening description form the key to what the church needs.