New Defender's Study Bible Notes
35:2 against mount Seir. There are four references to Mount Seir in this chapter (Ezekiel 35:2,3,7,15). See note on Genesis 36:20 on the origin of the name. Prophecies against Edom are also given in Jeremiah 49:7-22 and Obadiah 1-21.
35:15 Idumea. Idumea is the same as Edom, or Esau, and Mount Seir was its most prominent topographic feature. Perpetually at enmity with its brother nation, even assisting in its defeat by the Babylonians, the land of Edom was doomed to become utterly desolate. That is its condition today.