The terms 'fortress,' 'stronghold,' and 'castle' mostly refer to a part of a city that was more strongly fortified than by the mere walls. Proverbs 18:19 speaks of the 'bars of a castle.' There was such a place in Jerusalem when the city was taken by David, which was held by the Jebusites. 2 Samuel 5:6,7 . The Romans had a 'castle' in Jerusalem, to which Paul was carried when he was seized by the Jews. Acts 21:34,37 . This may have been the same that was called ANTONIA,a fortress built by Herod the Great, adjoining the temple, as described by Josephus: Wars, 5:5. 8. The Psalmist often calls Jehovah his rock and fortress. Psalm 18:2; Psalm 31:3; Psalm 71:3; Psalm 91:2 .

Bibliography Information
Morrish, George. Entry for 'Fortress'. Morrish Bible Dictionary. https://www.studylight.org/dictionaries/eng/mbd/f/fortress.html. 1897.

Bible Dictionaries Fortress

Morrish Bible Dictionary

Bible Dictionaries
Fortress