'Fenced Cities' in the Bible

Also he built Bethhoron the upper, and Bethhoron the nether, fenced cities, with walls, gates, and bars;

And Zorah, and Aijalon, and Hebron, which are in Judah and in Benjamin fenced cities.

And he took the fenced cities which pertained to Judah, and came to Jerusalem.

And he built fenced cities in Judah: for the land had rest, and he had no war in those years; because the LORD had given him rest.

And he placed forces in all the fenced cities of Judah, and set garrisons in the land of Judah, and in the cities of Ephraim, which Asa his father had taken.

These waited on the king, beside those whom the king put in the fenced cities throughout all Judah.

And he set judges in the land throughout all the fenced cities of Judah, city by city,

And their father gave them great gifts of silver, and of gold, and of precious things, with fenced cities in Judah: but the kingdom gave he to Jehoram; because he was the firstborn.

After these things, and the establishment thereof, Sennacherib king of Assyria came, and entered into Judah, and encamped against the fenced cities, and thought to win them for himself.

Now after this he built a wall without the city of David, on the west side of Gihon, in the valley, even to the entering in at the fish gate, and compassed about Ophel, and raised it up a very great height, and put captains of war in all the fenced cities of Judah.