Ezekiel 30:9

In that day shall messengers go forth, &c.— In that day shall swift messengers go forth from me, who shall terrify the secure Ethiopian; and he shall have great fears concerning the day of Egypt, because it shall be nigh. Houbigant; who observes, that as the messengers are sent to Cush or Ethiopia, if the Arabians be meant, they were not to be gone to by ships: if the Ethiopians, properly so called, to the south of Egypt, it was not proper for messengers to be sent to them in ships, because the navigation was against the stream, and could not be so quick as it ought upon an approaching calamity.