'Fortification' in the Bible

A brother who is offended [is worse] than a city of strength, and quarrels [are] like the bars of a fortification.

And he will throw down the fortification of the high point of your walls; he will bring [it] low; he will {send it} to the ground, to [the] dust.

"I have made you an assayer among my people, a fortification, so that you may know and put to the test their ways.

when the army of the king of Babylon [was] fighting against Jerusalem and against all the cities of Judah that were left over--Lachish and Azekah, for these remained among the cities of Judah, the cities of fortification.

The one who makes destruction flash upon [the] fierce, {so that} destruction comes upon [the] fortification.

{One who shatters} has come up against you! Guard [the] fortification! Watch [the] road! Gird [your] loins! {Muster} all [your] strength!

And they themselves scoff at kings and rulers [are] a joke to them. They laugh at every fortification, and they heap up earth and take it.

Tyre has built a fortification for itself, and it heaped up silver like dust, and gold like [the] mud of [the] streets.