Charles Ellicott Commentary Ezekiel 30:9

"In that day shall messengers go forth from before me in ships to make the careless Ethiopians afraid; and there shall be anguish upon them, as in the day of Egypt; for, lo, it cometh." — Ezekiel 30:9 (ASV)

Messengers go forth from me in ships. —Compare Isaiah 18:1-2. This does not mean the army of Nebuchadnezzar, which did not penetrate Ethiopia, but the fleeing Egyptians, who ascend the Nile to seek safety in Ethiopia and alarm it with the news of Egypt’s fall. The “careless” are the secure Ethiopians. “As in the day of Egypt” refers to a past event and can only mean the day of judgment on Egypt at the Exodus.