As thou didst rejoice at the inheritance of the house of Israel, because it was desolate, so will I do unto thee: thou shalt be desolate, O mount Seir, and all Idumea, even all of it: and they shall know that I am the LORD.

As you rejoiced when the inheritance of the house of Israel became desolate, so will I do to you. You will become a desolation, O Mount Seir, and so will all of Edom. Then they will know that I am the LORD.