כְּשִׂמְחָ֨תְךָ֜ לְנַחְלַ֧ת בֵּֽית־יִשְׂרָאֵ֛ל עַ֥ל אֲשֶׁר־שָׁמֵ֖מָה כֵּ֣ן אֶעֱשֶׂה־לָּ֑ךְ שְׁמָמָ֨ה תִֽהְיֶ֤ה הַר־שֵׂעִיר֙ וְכָל־אֱד֣וֹם כֻּלָּ֔הּ וְיָדְע֖וּ כִּֽי־אֲנִ֥י יְהוָֽה׃ (פ)
As thou didst rejoice over 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 Edom, even all of it; and they shall know that I am the LORD.
Read midrashic interpretation of Ezekiel 35:15: and classical rabbinic exegesis.