'Wall' in the Bible

if the king becomes angry and asks you, 'Why did you go so close to the city to fight? Didn't you realize they would shoot from the wall?

Who struck down Abimelech the son of Jerub-Besheth? Didn't a woman throw an upper millstone down on him from the wall so that he died in Thebez? Why did you go so close to the wall?' just say to him, 'Your servant Uriah the Hittite is also dead.'"

Then the archers shot at your servants from the wall and some of the king's soldiers died. Your servant Uriah the Hittite is also dead."

Now David was sitting between the inner and outer gates, and the watchman went up to the roof over the gate at the wall. When he looked, he saw a man running by himself.

So Joab's men came and laid siege against him in Abel of Beth Maacah. They prepared a siege ramp outside the city which stood against its outer rampart. As all of Joab's soldiers were trying to break through the wall so that it would collapse,

That's not the way things are. There is a man from the hill country of Ephraim named Sheba son of Bicri. He has rebelled against King David. Give me just this one man, and I will leave the city." The woman said to Joab, "This very minute his head will be thrown over the wall to you!"

Indeed,with your help I can charge against an army; by my God's power I can jump over a wall.