'Fortress' in the Bible

The rich hide within the fortress that is their wealth, but the poor are dismayed due to their poverty.

In the fear of Yahweh is a secure fortress, and he will be a refuge for his children.

An offended brother is harder to reachthan a fortified city,and quarrels are like the bars of a fortress.

A wise person went up against a city of warriorsand brought down its secure fortress.