Bible Verses About Walls: Danger of approaching too near to, in time of war

if the king’s anger flares, he may ask you, ‘Why did you get so close to the city to fight? Did you not realize they would shoot from atop the wall?

Who was the one to strike Abimelech son of Jerubbesheth? Was it not a woman who dropped an upper millstone on him from the wall, so that he died in Thebez? Why did you get so close to the wall?’ If so, then you are to say, ‘Your servant Uriah the Hittite is dead as well.’”