'Regions' in the Bible

All of these cities were fortified with high walls, gates, and bars. Furthermore, there were very many unwalled regions.

in the mountain regions, in the Arabah, on the foothills, in the wilderness, in the Negev; that is, the Hittites, the Amorites, the Canaanites, the Perizzites, the Hivites, and the Jebusites:

This territory remains: all of the Philistine regions, including all Geshurite holdings

When he arrived there, he sounded a trumpet in the mountainous region of Ephraim. While the Israeli army accompanied Ehud from the mountainous regions,

By your messengers you have insulted the LORD. You have claimed, "With my many chariots I ascended the heights of the mountains, including the remotest regions of Lebanon; I cut down its tall cedars and the best of its cypress trees. I entered its most remote lodging place and its most fruitful forest.

Even though they feared the people in neighboring regions, they rebuilt the altar where it had stood before. They offered burnt offerings on it to the LORD burnt offerings both in the morning and in the evening.

Pay attention to your covenant, for the dark regions of the earth are full of violence.

The LORD does whatever pleases him in heaven and on earth, in the seas and all its deep regions.