New Defender's Study Bible Notes
18:1 rivers of Ethiopia. These rivers probably were the Nile headwaters with their tributaries. Ethiopia is Cush in the Hebrew, no doubt referring to their ancestor Cush, son of Ham and father of Nimrod (Genesis 10:6,8).
18:1 Ethiopia. The coming Assyrian invasion would extend even into Egypt and Ethiopia. All of these prophecies of invasion and destruction were fulfilled in the period from about 730 B.C. to about 670 B.C.