What does Isaiah 15:6 mean?
The Wadi en-Numeira is located on the southeastern shore of the Dead Sea. This would be about ten miles, or sixteen kilometers, from the very southern edge of that body of water. Scholars agree that might be the oasis described in this verse as the waters of Nimrim. It would have been another stop for the refugees of Moab in their journey south to Zoar, where they hoped to escape the bloodshed and find a place to settle (Isaiah 15:5).The problem with this place, known for water, is that there isn't any water to be found. Either due to drought or because so many refugees have come for water at once, they find the place dried up. The grass is withered and the greenery is gone. They cannot even feed their animals, let alone water them.
Things keep deteriorating for the Moabites under this judgment from the Lord. The next verse implies that many people must abandon their animals at this point (Isaiah 15:7).