John the Apostle
Revelation 3:1KJV·traditional attribution

And unto the angel of the church in Sardis write; These things saith he that hath the seven Spirits of God, and the seven stars; I know thy works, that thou hast a name that thou livest, and art dead.

William Burkitt Anglican

This chapter began the fifth epistle which Christ wrote and directed to the church at Sardis. In which observe, 1. The glorious description given of our Lord Jesus Christ, namely, that he has the seven Spirits of God, and the seven stars; that is, according to some, he hath the Holy Spirit of God proceeding from him as from the Father: and because he had...

Matthew Henry Presbyterian

Here is, I. The preface, showing, 1. To whom this letter is directed: To the angel of the church of Sardis, an ancient city of Lydia, on the banks of the mountain Tmolus, said to have been the chief city of Asia the Less, and the first city in that part of the world that was converted by the preaching of John; and, some say...

Commenting on Revelation 3:1-6

John Gill Reformed Baptist

And unto the angel of the church in Sardis write,.... Of the city of Sardis See Gill on Rev 1:11 when, and by whom this church was founded, and who was the present angel or pastor of it, is not now to be certainly known; however, here was a church in the "second" century, of which Melito was then pastor; and he is thought by...