Revelation 21:14-15

21:14 The wall of the city has twelve foundations, and on them are the twelve names of the twelve apostles of the Lamb.

21:15 The angel who spoke to me had a golden measuring rod with which to measure the city and its foundation stones and wall.

Revelation 21:17

21:17 He also measured its wall, one hundred forty-four cubits according to human measurement, which is also the angel’s.