'Lowlands' in the Bible

Resume your journey and go to the hill country of the Amorites and their neighbors in the Arabah, the hill country, the Judean foothills, the Negev and the sea coast—to the land of the Canaanites and to Lebanon as far as the Euphrates River.

with all the Arabah (desert lowlands) across the Jordan to the east, even as far as the sea of the Arabah (the Dead Sea), at the foot of the slopes of Pisgah.