2 Chronicles 25:23

23And Joash king of Israel captured Amaziah king of Judah, the son of Joash, son of aAhaziah, at Beth-shemesh, and brought him to Jerusalem and broke down the wall of Jerusalem for 400 cubits,
A  cubit was about 18 inches or 45 centimeters
from cthe Ephraim Gate to the Corner Gate.

Zechariah 14:10

10 dThe whole land shall be turned into a plain from eGeba to fRimmon south of Jerusalem. But gJerusalem shall remain aloft hon its site from ithe Gate of Benjamin to the place of the former gate, to jthe Corner Gate, and from kthe Tower of Hananel to the king’s winepresses.
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