John the Apostle
Revelation 2:18ESV·traditional attribution

“And to the angel of the church in Thyatira write: ‘The words of the Son of God, who has eyes like a flame of fire, and whose feet are like burnished bronze.

Matthew Henry Presbyterian @wholebiblehenry

The form of each epistle is very much the same; and in this, as the rest, we have to consider the inscription, contents, and conclusion. I. The inscription, telling us, 1. To whom it is directed: To the angel of the church of Thyatira, a city of the proconsular Asia, bordering upon Mysia on the north and Lydia on the south, a town of trade...

Commenting on Revelation 2:18-29

John Gill Reformed Baptist @doctorgill

And unto the angel of the church in Thyatira write,.... Of the city of Thyatira; see Gill on Rev 1:11; a church was formed here very likely by the Apostle Paul; Lydia was a native of this place, who, and her household were converted and baptized by him at Philippi, Act 16:14; though Epiphanius (u) seems to grant, what some heretics objected to the authority...

Albert Barnes Presbyterian @notesbybarnes

Verse 18. And unto the angel of the church. . These things saith the Son of God. This is the first time, in these epistles, that the name of the speaker is referred to. In each other instance, there is merely some attribute of the Saviour mentioned.