Whedon's Commentary on the Bible - Isaiah 21:2
2. A grievous vision A sad and most afflictive prophetic view is shown. The treacherous dealer Babylonian tyranny overreaches itself in its cruelties. Go up, O Elam: besiege, O Media Persia and Media are summoned to execute terrible judgment upon the insolent empire. God ordains that the sighs of the oppressed shall cease. This prophecy is uttered probably two centuries before its fulfilment. read more
Wesley's Explanatory Notes - Isaiah 21:2
A grievous vision is declared unto me; the treacherous dealer dealeth treacherously, and the spoiler spoileth. Go up, O Elam: besiege, O Media; all the sighing thereof have I made to cease.A vision — A vision or prophecy, containing dreadful calamities which were to fall upon Babylon.The spoiler — The Medes and Persians used treachery as well as force against Babylon.Elam — Persia, so called, because Elam was an eminent province of Persia, bordering upon the Medes.Besiege — Namely, Babylon,... read more