John Gill Commentary 2 Kings 19:20

"Then Isaiah the son of Amoz sent to Hezekiah, saying, Thus saith Jehovah, the God of Israel, Whereas thou hast prayed to me against Sennacherib king of Assyria, I have heard [thee]." — 2 Kings 19:20 (ASV)

(See Gill on 2 Kings 19:1)