Zephaniah 2:12 “You Ethiopians also, you shall be slain by My sword. [13] And He will stretch out His hand against the north, destroy Assyria, and make Nineveh a desolation, as dry as the wilderness.
In the Old Testament the reference to Ethiopia is not what we modernly refer to in regards to geography. The OT Hebrew and contemporaneous Egyptian referred to this land as Cush, but the Septuagint–a Greek translation of the Old Testament–rendered the term “Aithiopia.” Modern English translations tend to follow the Septuagint, hence the term Ethiopia.