TKJU(i)
14 And the wall of the city had twelve foundations, and in them the names of the twelve apostles of the Lamb.
15 And he that talked with me had a golden reed to measure the city, its gates, and its wall.
16 And the city lies four-square, and the length is as large as the breadth: And he measured the city with the reed, twelve thousand furlongs. The length, breadth, and height of it are equal.12000 furlongs is approximately 1500 miles or 2414 kilometers.
17 Then he measured its wall, one hundred and forty-four cubits, according to the measure of a man, that is, of the angel.144 Roman cubits is approximately 209 feet or 63.6 meters.
18 And its wall was built of jasper: And the city was pure gold, like clear glass.
19 And the foundations of the wall of the city were adorned with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, an emerald;
20 the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprase; the eleventh, a jacinth; the twelfth, an amethyst.sardius; or, ruby