'Walls of Jerusalem' in the Bible

And I went out by night by the gate of the valley, even before the dragon-well, and to the dung-port, and viewed the walls of Jerusalem, which were broken down, and their gates were consumed with fire.

But it came to pass, when Sanballat, and Tobiah, and the Arabians, and the Ammonites, and the Ashdodites, heard that the walls of Jerusalem were set up, and that the breaches began to be stopped, then they were very wroth,