Isaiah 37:9

Now Sennacherib had been warned about Tirhakah king of Cush: “He has set out to fight against you.” On hearing this, Sennacherib sent messengers to Hezekiah, saying,

And he heard say concerning Tirhakah king of Ethiopia, He is come forth to make war with thee. And when he heard it, he sent messengers to Hezekiah, saying,