2 Chronicles 21:16 Commentary - English Annotations on the Holy Bible by Matthew Poole

The Philistines; a people fully subdued and dispirited; but God now raiseth their spirits and courage to do his work.

Near the Ethiopians, Heb. near the Cushites, i.e. either the Ethiopians, from whom they were parted only by the Red Sea, each dwelling upon the opposite shores of it; or rather, a people in Arabia, frequently mentioned in Scripture, and so called, either for their likeness in colour and complexion to the Ethiopians properly so called, or because the one of these people were a colony of the other. But the Ethiopians above Egypt were far enough from these other Arabians, being separated from them by the Red Sea.