New Jerusalem Measured
A man with a golden reed measures the New Jerusalem. The numbers point at the count of people in the book of Numbers, same as another story about measuring Jerusalem.
Revelation 21:15-17
15He who talked with me had a measuring rod of gold reed to measure the city and its gates and its wall. M Ezekiel 40:3
16The city was laid 4-square the length the same as the breadth. He measured the city with the reed, 12,000 stadia, and the length and breadth and height were equal.
17He measured the wall, 144 cubits, according to the measure of a man, that is, of the king. Revelation 21:15-17 (Revelation 21:15-17 BRB)
Count
4+12000+144 = 12148 = Numbers
Numbers
The "measure" of the "city" in terms of the book of Numbers is the "count" of the people in the "camp" of Israel, a camp that surrounded the tent of god. That tent is already linked to the New Jerusalem in Revelation by another numeric cross reference, so it's not strange to find this cross reference landing on it. So too, the idea that measuring Jerusalem is actually a count of it's people is already established with another numeric cross reference from Zechariah that works exactly like this one.
FE 1The Master spoke with Moses in the wilderness of Sinai in the tent of time in the 1st day of the 2nd month in the 2nd year after the children of Israel came out of the land of Mizraim and said to him,
2Take a census of all the assembly of the children of Israel by their families, by the house of their fathers, with the number of their names, every male by their polls.
3From 20 years old and up, all who are able to go forth to war in Israel, you and Aaron your brother will number them, by their hosts. Numbers 1:1-15 (Numbers 1:1-3 BRB)
And...
FE 1The Master spoke with Moses and with Aaron and said to them,
2Every man will camp by his own banner with the mark of the house of his father of the children of Israel around the tent of time.
Numbers 2:1-23Those who camp 1st toward the east will be of the banner of the camp of Judah according to their hosts and the head of the children of Judah Nahshon son of Amminadab.
4The number of his host was 74,600.
Numbers 2:3-45Those who camp by him will be the tribe of Issachar and the head of the children of Issachar Nethanel son of Zuar.
6The number of his host was 54,400.
Numbers 2:5-67Then will camp the tribe of Zebulun and the head of the children of Zebulun Eliab son of Helon.
8The number of his host was 57,400.
Numbers 2:7-89The total number of the camp of Judah was 186,400 throughout their hosts. They will march 1st.
Numbers 2:910On the south side will be the banner of the camp of Reuben according to their hosts and the head of the children of Reuben Elizur son of Shedeur.
11The number of his host was 46,500.
Numbers 2:10-1112Those who camp by him will be the tribe of Simeon and the head of the children of Simeon Shelumiel son of Zurishaddai.
13The number of his host was 59,300.
Numbers 2:12-1314Then will camp the tribe of Gad and the head of the children of Gad Eliasaph son of Reuel.
15The number of his host was 45,650.
Numbers 2:14-1516The total number of the camp of Reuben was 151,450 throughout their hosts. They will march second.
Numbers 2:1617Then the tent of time will march with the camp of the Levites in the middle of the camps. As they camped so they will march every man by his banner.
Numbers 2:1718On the west side will be the banner of the camp of Ephraim according to their hosts and the head of the children of Ephraim Elishama son of Ammihud.
19The number of his host was 40,500.
Numbers 2:18-1920Those who camp by him will be the tribe of Manasseh and the head of the children of Manasseh Gamaliel son of Pedahzur.
21The number of his host was 32,200.
Numbers 2:20-2122Then will camp the tribe of Benjamin and the head of the children of Benjamin Abidan son of Gideoni.
23The number of his host was 35,400.
Numbers 2:22-2324The total number of the camp of Ephraim was 108,100 throughout their hosts. They will march third.
Numbers 2:2425The banner of the camp of Dan will be on the north side by their hosts and the head of the children of Dan Ahiezer son of Ammishaddai.
26The number of his host was 62,700.
Numbers 2:25-2627Those who camp by him will be the tribe of Asher and the head of the children of Asher Pagiel son of Ocran.
28The number of his host was 41,500.
Numbers 2:27-2829Then will camp the tribe of Naphtali and the head of the children of Naphtali Ahira son of Enan.
30The number of his host was 53,400.
Numbers 2:29-3031The total number of the camp of Dan was 157,600. They will march last with their banners. Numbers 2:31 (Numbers 2:1-31 BRB)