Isaiah 20:3-6 expands the prophecy about Cush with a symbolic act against Egypt and Cush, directly relating to the 'land of whirring wings' here.

Zephaniah 3:10 depicts worshippers from beyond the rivers of Cush bringing offerings — a positive contrast to the woe here.

2 Kings 19:9 mentions Tirhakah king of Ethiopia, providing historical context for the land 'beyond the rivers of Cush' in Isaiah 18:1.

Ezekiel 30:4 pronounces judgment on Ethiopia (Cush), echoing the oracle against the same region in Isaiah 18:1. Both are prophetic declarations.