2 Kings 19:9

“when he heard say of Tirhakah . . ., Behold, he is come out to fight against thee, &c.--This was the "rumor" to which Isaiah referred [Kg2 19:7]. Tirhakah reigned in Upper Egypt, while So (or Sabaco) ruled in Lower Egypt. He was a powerful monarch, another Sesostris, and both he and Sabaco have left many monuments of their greatness. The name and figure of Tirhakah receiving war captives, are still seen in the Egyptian temple of Medinet Abou. This was the expected succor which was sneered at by Rab-shakeh as "a bruised reed" (Kg2 18:21). Rage against Hezekiah for allying himself with Egypt, or the hope of being better able to meet this attack from the south, induced him, after hearing the…”

“Tirhakah king of Ethiopia - The Tehrak or Teharka of the hieroglyphics. He was the last king of the 25th or Ethiopian dynasty, which commenced with Shebek or Sabaco, and he reigned upward of 26 years. The Assyrian inscriptions show that he still ruled in Egypt as late as 667 B.C., when Esarhaddon 2 Kings 19:37 died, and his son Asshur-bani-pal succeeded him. He probably ascended the Egyptian throne about 692 B.C., having previously ruled over Ethiopia before he became king of Egypt (compare Isaiah 37:9). Thus he was probably reigning in Ethiopia at the time of Sennacherib’s expedition, while Sethos and perhaps other secondary monarchs bore rule over Egypt. His movements caused Sennacherib to…”

“19:9 King Tirhakah of Ethiopia would later become pharaoh over Egypt. At this time he was a commander in his brother Shebitku’s army.”

“when he heard: When Sennacherib had levied contributions on Hezekiah, he marched his army into Egypt; where, after several successes, he laid siege to Pelusium, and spent much time in it; but hearing that Tirhakah, king of Ethiopia, whom Strabo calls Therchon, was marching against him with a great army, to assist his kinsman Sevechus, or Sethon, the king of Egypt, he durst not abide his coming, but raised the siege; and returning to Judea, he encamped against Lachish, and afterwards against Libnah. But finding that Tirhakah pursued him as a fugitive, he marched back to encounter him; and having totally routed his army, he returned to wreak his vengeance on Hezekiah. Sa1 23:27; Isa 37:9 sent:…”