'Wall' in the Bible

So I will send down fire upon the wall of Gaza, and it will devour their fortified citadels;

So I will send down fire upon the wall of Tyre, and it will devour their fortified citadels."

So I will send down fire upon the wall of Rabbah, and it will devour their fortified citadels with an alarm sounding in the time of battle, and with a whirlwind in the time of storm.

It will be like a man who runs from a lion, only to encounter a bear; or who comes home, leans his hand against a wall, and a serpent bites him!

This is what he showed me: Look! The Lord was standing upon a wall that stood straight and true, with a plumb line in his hand.