'Seven Churches' in the Bible

John to the seven churches which are in Asia; Grace be unto you, and peace from him who is, and who was, and who cometh, and from the seven Spirits that are before the throne,

and heard behind me a great voice as of a trumpet, Saying, what thou seest, write in a book and send to the seven churches, to Ephesus, and to Smyrna, and to Pergamos, and to Thyatira, and to Sardis, and to Philadelphia, and to Laodicea.

The mystery of the stars which thou sawest in my right hand and of the seven golden candlesticks. The stars are angels of the churches: and the candlesticks are seven churches.