John the Apostle
Revelation 21:2BSB·traditional attribution

I saw the holy city, the new Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband.

Albert Barnes Presbyterian

Verse 2. And I John saw the holy city, new Jerusalem, coming down from God out of heaven. On the phrase "new Jerusalem," ; . Here it refers to the residence of the redeemed, the heavenly world, of which Jerusalem was the type and symbol.

John Gill Reformed Baptist

And I John saw the holy city,.... The same with the beloved city in Rev 20:9 the church of God: sometimes the church militant is called a city, of which the saints are now fellow citizens, governed by wholesome laws, and enjoying many privileges; but here the general assembly and church of the firstborn, or all the elect of God, are intended, the whole body...

Geneva Bible Notes Reformed

And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband. (2) The state of this glorious Church is first described generally to , and then specially and by parts, in the verses following. The general description consists in a vision shown afar off, and in speech spoken from heaven.