'Stronghold' in the Bible

Yet David did capture the stronghold of Zion, that is, the city of David.

David took up residence in the stronghold, which he named the city of David. He built it up all the way around from the supporting terraces inward.

When the Philistines heard that David had been anointed king over Israel, they all went in search of David, but he heard about it and went down to the stronghold.

Meanwhile, Joab attacked the Ammonite city of Rabbah and captured its stronghold.

This is what he said: LORD, you are my stone stronghold and my fortified place; you are continuously delivering me.

my God, my mountain where I seek refuge.My shield, the horn of my salvation, my stronghold, my refuge,and my Savior, You save me from violence.

At that time David was in the stronghold, and a Philistine garrison was at Bethlehem.

and came to the stronghold of Tyre, and to all the cities of the Hivites, and of the Canaanites; and they went out to the south of Judah, at Beer-sheba.