“Rabshakeh returned to his king. He found the king of Assyria fighting against Libnah, because he had heard that the king had left Lachish. The king of Assyria heard concerning King Tirhakah of Ethiopia. ‘See he has set out to fight against you.’”
Rabshakeh wanted to return to his king to let him know what was happening in Jerusalem. The king of Assyria had left Lachish to fight against the town of Libnah. Lachish and Libnah were about 25 miles west of Jerusalem but in Judah territory. He also got word that King Tirhakah was setting out to fight against him. This King Tirhakah is sometimes known as Taharqa. As a young 20 year old general he fought with King Sennacherib in Palestine. He then served as king of Egypt and Ethiopia from 690-664 BCE. So he would not have been king when this occurred about 10-15 years earlier. Nevertheless, there was a constant war between these two great Mideast powers, Egypt and Assyria.