2 Kings 14:13

13Then Jehoash king of Israel captured Amaziah king of Judah, the son of Jehoash the son of Ahaziah, at Beth-shemesh, and came to Jerusalem and tore down the wall of Jerusalem from athe Gate of Ephraim to bthe Corner Gate, 400
I.e. One cubit equals approx 18 in.
cubits.
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