'Angel of the Church' in the Bible

To the angel of the church of Ephesus write: He who holds the seven stars in His right hand, who walks in the midst of the seven golden lampstands, says these things.

And to the angel of the church in Smyrna write: The First and the Last, who became dead and lived, says these things:

And to the angel of the church in Pergamos write: He who has the sharp sword with two edges says these things.

And to the angel of the church in Thyatira write: The Son of God, He who has His eyes like a flame of fire and His feet like burnished metal, says these things:

And to the angel of the church in Sardis write: He who has the seven Spirits of God and the seven stars says these things. I know your works, that you have a name that you live, and are dead.

And to the angel of the church in Philadelphia write: He who is holy, He who is true, He who has the key of David, He who opens and no one shuts; and shuts and no one opens, says these things:

And to the angel of the church of the Laodicea write: The Amen, the faithful and true Witness, the Head of the creation of God, says these things: