Cross reference
Ezekiel 48:16
16 And these `are' its measures: the north side five hundred, and four thousand, and the south side five hundred, and four thousand, and on the east side five hundred, and four thousand, and the west side five hundred, and four thousand.
Revelation 21:16
16 and the city lieth square, and the length of it is as great as the breadth; and he did measure the city with the reed -- furlongs twelve thousand; the length, and the breadth, and the height, of it are equal;