'Seven Churches' in the Bible

John to the seven churches which are in Asia. Grace to you and peace from Him who is and who was and who is coming; and from the seven spirits which are before His throne;

saying, I am the Alpha and Omega, the First and the Last. Also, What you see, write in a book and send it to the seven churches which are in Asia: to Ephesus, and to Smyrna, and to Pergamos, and to Thyatira, and to Sardis, and to Philadelphia, and to Laodicea.

the mystery of the seven stars which you saw in My right hand and the seven golden lampstands. The seven stars are the angels of the seven churches, and the seven lampstands which you saw are the seven churches.