2 Kings 14:13

13And Jehoash king of Israel captured Amaziah king of Judah, the son of Jehoash, son of Ahaziah, at Beth-shemesh, and came to Jerusalem and broke down the wall of Jerusalem for four hundred cubits,
A  cubit was about 18 inches or 45 centimeters
from bthe Ephraim Gate to cthe Corner Gate.

Nehemiah 8:16

16So the people went out and brought them and made booths for themselves, each don his roof, and in their courts and in the courts of the house of God, and in the square at ethe Water Gate and in the square at fthe Gate of Ephraim.
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