“And they spoke of the God of Jerusalem as they spoke of the gods of the peoples of the earth, which are the work of men's hands” (v19). Sennacherib of Assyria knew how to frighten the citizens of Judah; he and his generals shouted insults and threatened invasion, questioning whether “the God of Jerusalem” could really save His people. The mighty Assyrians had conquered many other nations, but Hezekiah encouraged the people: “Be strong and courageous …with us is the Lord our God, to help us and to fight our battles” (v7-8).
Hezekiah knew that the world’s methods, “the arm of flesh,” can’t save (v8). Our defense against the enemy of our souls is our Savior, who fights for us.