Revelation 21:15-17

Twentieth_Century(i) 15 And the angel who was speaking to me had as a measure a gold rod, with which to measure the City and its gates and its wall. 16 The City is square; the length and the breadth are the same. The angel measured with his rod; it was twelve hundred miles; its length, and breadth, and height are equal. 17 Then he measured the wall; it was two hundred and eighty-eight feet, as men measure, that is as the angel measured.