Charles Ellicott Commentary Ezekiel 36:5

"therefore thus saith the Lord Jehovah: Surely in the fire of my jealousy have I spoken against the residue of the nations, and against all Edom, that have appointed my land unto themselves for a possession with the joy of all their heart, with despite of soul, to cast it out for a prey." — Ezekiel 36:5 (ASV)

Idumea means Edom, as in Ezekiel 35:15 (see the note there). For “cast it out” in the last clause of the verse, read empty it out. The idea of casting out a land as prey is incongruous, and the other sense is admissible.