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,
Isaiah sends word to Hezekiah because the LORD has heard his prayer concerning Sennacherib.
This verse opens the divine answer as a response to prayer.
21Then 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, 22this is the word that the LORD has spoken against him: 23Whom have you taunted and blasphemed? 24Through your servants you have taunted the Lord, 25I have dug wells 26Have you not heard? 27Therefore their inhabitants, devoid of power, 28But I know your sitting down, 29Because your rage and arrogance against Me 30And this will be a sign to you, O Hezekiah: 31And the surviving remnant of the house of Judah 32For a remnant will go forth from Jerusalem, 33So this is what the LORD says about the king of Assyria: 34He will go back the way he came, 35‘I will defend this city