In high places — Upon the mountains where by the course of nature there are no rivers. The dry land — Their people who are like a dry and barren wilderness. I will abundantly water with my blessings.
Related Commentaries of Isaiah 41:18
Isaiah 41:18
18 I will open rivers in high places, and fountains in the midst of the valleys: I will make the wilderness a pool of water, and the dry land springs of water.