John the Apostle
Revelation 3:14ESV·traditional attribution

“And to the angel of the church in Laodicea write: ‘The words of the Amen, the faithful and true witness, the beginning of God’s creation.

Matthew Henry Presbyterian @wholebiblehenry

We now come to the last and worst of all the seven Asian churches, the reverse of the church of Philadelphia; for, as there was nothing reproved in that, here is nothing commended in this, and yet this was one of the seven golden candlesticks, for a corrupt church may still be a church. Here we have, as before, I. The inscription, to whom, and from whom. 1.

Commenting on Revelation 3:14-22

John Gill Reformed Baptist @doctorgill

So then because thou art lukewarm, and neither cold nor hot,.... A lukewarm professor is one that serves God and mammon; that halts between two opinions, and knows not what religion is best, and cares little for any, yet keeps in a round of duty, though indifferent to it, and contents himself with it; and is un concerned about the life and power of godliness...

Albert Barnes Presbyterian @notesbybarnes

Verse 14. And unto the angel of the church of the Laodiceans write. . These things saith the Amen. Referring, as is the case in every epistle, to some attribute of the speaker adapted to impress their minds, or to give peculiar force to what he was about to say to that particular church.