John the Apostle
Revelation 21:17BSB·traditional attribution

And he measured its wall to be 144 cubits, by the human measure the angel was using.

Matthew Henry Presbyterian @wholebiblehenry

We have already considered the introduction to the vision of the new Jerusalem in a more general idea of the heavenly state; we now come to the vision itself, where observe, I. The person that opened the vision to the apostle - one of the seven angels, that had the seven vials full of the seven last plagues, Rev 21:9.

Commenting on Revelation 21:9-27

John Gill Reformed Baptist @doctorgill

And he measured the wall thereof, an hundred and forty and four cubits,.... The root of which is twelve, for twelve times twelve is a hundred and forty four; which number is mystical and apostolical, and suited to the perfect state of this church: hence twelve gates, and twelve angels at them, and the names of the twelve tribes on them, and twelve foundations of...

Albert Barnes Presbyterian @notesbybarnes

Verse 17. And he measured the wall thereof. In respect to its height. Of course, its length corresponded with the extent of the city. An hundred and forty and four cubits. This would be, reckoning the cubit at eighteen inches, two hundred and sixteen feet. This is less than the height of the walls of Babylon, which Herodotus says were three hundred and fifty feet high. See Introduction to .