Revelation 21:17

And he measured the wall thereof, an hundred and forty and four cubits, according to the measure of a man, that is, of the angel.

Cross-reference

Revelation 21:12 describes the wall with gates and angels; here the wall's height is measured — same wall.

Revelation 7:4 records 144,000 sealed — the number 144 connects to the wall's 144 cubits, a symbolic parallel.

Revelation 13:18 calls for calculating the beast's number, also a human number; here the wall's 144 cubits is a human measurement.