'Rampart' in the Bible

They came and besieged him in Abel Beth-maacah, and they cast up a siege ramp against the city, and it stood by the rampart; and all the people who were with Joab were wreaking destruction in order to topple the wall.

The Lord determined to destroyThe wall of the daughter of Zion.He has stretched out a line,He has not restrained His hand from destroying,And He has caused rampart and wall to lament;They have languished together.

Are you better than No-amon,Which was situated by the waters of the Nile,With water surrounding her,Whose rampart was the sea,Whose wall consisted of the sea?

I will stand on my guard postAnd station myself on the rampart;And I will keep watch to see what He will speak to me,And how I may reply when I am reproved.