This week we cover a historical parenthesis in chapters 35 - 39 concerning the times of King Hezekiah. Hezekiah is in seemingly dire circumstances, facing an imminent attack by the Assyrians, lead by Sennacherib. A major motivation in the battles of this day was the victory over foreign gods, proving conquering nation's god/idol was ''better'' than the loser's god.
Then the angel of the LORD went forth, and smote in the camp of the Assyrians a hundred and fourscore and five thousand: and when they arose early in the morning, behold, they [were] all dead corpses. - Isaiah 37:36