What does 2 Kings 19:4 mean?

Maybe the Lord your God has heard all the blasphemous things the Assyrian field commander said to mock the living God. Maybe God will punish him for what he said. So please pray for those of us who are left.' 2 Kings 19:4 - Modern Text Bible

(Hezekiah hopes that God will respond to the enemy’s insults and asks Isaiah to pray for the small group of survivors.)