Revelation 1:9-11

9I John, your brother and fellow-partaker in the tribulation and kingdom and patience, in Jesus, was in the island called Patmos, for the word of 1God, and for the testimony of Jesus.

10I became in [the] Spirit on the Lord's day, and I heard behind me a great voice as of a trumpet,

11saying, What thou seest write in a book, and send to the seven assemblies: to Ephesus, and to Smyrna, and to Pergamos, and to Thyatira, and to Sardis, and to Philadelphia, and to Laodicea.