'Slopes' in the Bible

So Joshua struck all the land, the hill country, and the South, and the lowland, and the slopes, and all their kings. He left none remaining, but he utterly destroyed all that breathed, as Yahweh, the God of Israel, commanded.

and the Arabah to the sea of Chinneroth, eastward, and to the sea of the Arabah, even the Salt Sea, eastward, the way to Beth Jeshimoth; and on the south, under the slopes of Pisgah:

in the hill country, and in the lowland, and in the Arabah, and in the slopes, and in the wilderness, and in the South; the Hittite, the Amorite, and the Canaanite, the Perizzite, the Hivite, and the Jebusite:

Beth Peor, the slopes of Pisgah, Beth Jeshimoth,