'Lowland' in the Bible

The waste land and the dry places will be glad; the lowland will have joy and be full of flowers.

A voice of one crying, Make ready in the waste land the way of the Lord, make level in the lowland a highway for our God.

I will put in the waste land the cedar, the acacia, the myrtle, and the olive-tree; and in the lowland will be planted the fir-tree, the plane, and the cypress together: