2 Kings 19:9

Now Sennacherib had been warned about Tirhakah king of Cush: “Look, he has set out to fight against you.” So Sennacherib again sent messengers to Hezekiah, saying,

And when he heard say of Tirhakah king of Ethiopia, Behold, he is come out to fight against thee: he sent messengers again unto Hezekiah, saying,