'Corner gate' in the Bible
Then King Jehoash of Israel captured Judah's King Amaziah, the son of Jehoash and grandson of Ahaziah, at Beth-shemesh. He went to Jerusalem and demolished 400 cubits of the wall of Jerusalem from the Ephraim Gate to the Corner Gate.
King Joash of Israel captured Joash's son King Amaziah of Judah, the grandson of Ahaziah, at Beth-shemesh and brought him back to Jerusalem, where he broke down 400 cubits of the wall of Jerusalem from the Ephraim Gate to the Corner Gate.
Uzziah also built towers in Jerusalem, at the Corner Gate, at the Valley Gate, and at the Angle and fortified them.
"Look, days are coming," declares the LORD, "when the city of the LORD will be rebuilt from the Tower of Hananel to the Corner Gate.
The entire land will become like the Arabah plain from Geba to Rimmon, south of Jerusalem. It will be raised up and inhabited where it is, from the Gate of Benjamin to the First Gate, then to the Corner Gate, to the Hananel Tower, and to the king's winepresses.