Calling a ravenous bird from the east, the man that executeth my counsel from a far country: yea, I have spoken it, I will also bring it to pass; I have purposed it, I will also do it.
A ravenous bird from the east - Cyrus: so called on account of the rapidity of his marches from the distant regions of Persia to pounce on his prey, (see notes, Isaiah 41:2; Isaiah 41:25; Jeremiah 49:22; Ezekiel 17:3). The standard of Cyrus, too, was a golden eagle on a spear (see the pagan historian, Xenophon, 7, where almost the same word is used, aetos, as here, `ayit).
The man that executeth my counsel - (Isaiah 44:28; Isaiah 45:13.) Babylon represents, mystically, the apostate faction: the destruction of its idols symbolizes the future general extirpation of all idolatry and unbelief.
I have purposed (it), I will also do it - (Isaiah 43:13.)