The Lord asked the nations a question: Who had righteously summoned a conqueror from the East who would defeat nations and overcome kings as easily and swiftly as one blows away dust and chaff? Later, Isaiah would identify this conqueror as Cyrus the Persian ( Isaiah 44:28; Isaiah 45:1), but here the emphasis is on the One who sovereignly called him into action, namely: Yahweh. The four Mesopotamian kings who invaded Canaan in Abraham"s day and took Lot captive were the prototype of this invader, as were Sargon, Sennacherib, and Nebuchadnezzar. Jesus Christ will be the ultimate fulfillment when He returns to the earth east of Jerusalem (on the Mount of Olives), and overcomes His enemies, who will have assembled in Palestine. Cyrus came from Persia (modern Iran), which was east of Mesopotamia. This invader would proceed safely over previously unused routes. [source][source][source]