Isaiah 37:2; Isaiah 37:21

2 He sent Eliakim the palace administrator, Shebna the secretary, and the leading priests, all wearing sackcloth, to the prophet Isaiah son of Amoz.
21 Then Isaiah son of Amoz sent a message to Hezekiah: "This is what the LORD, the God of Israel, says: Because you have prayed to me concerning Sennacherib king of Assyria,