Yahweh God, via Ezekiel, was speaking in his hot jealousy against all the other countries. However, there was an explicit remark about all of Edom, since they had taken possession and plundered the land of Israel with great joy and utter contempt, because of its good pastures. Thus, Ezekiel was to prophesy about the land of Israel, including its mountains, hills, water streams, and valleys. Yahweh God was full of his jealous wrath. Israel had suffered the insults of these other countries. Now Yahweh said that all these other countries around Israel would suffer these insults themselves.
Yahweh, via Ezekiel, said that he was going to make Mount Seir a wasteland and a desolation. He was going to cut it off from all other countries, so that no one would be able to come or go into it. He was going to fill its mountains with all their fallen dead bodies, whether in the hills, in the valleys, or in the water streams. Mount Seir was going to become a perpetual desolation. Its cities would never be inhabited again. However, they would finally know that Yahweh was God.