For I will defend this city to save it for mine own sake, and for my servant David’s sake.
God promised to defend Jerusalem against the king of Assyria and to save the city for His own sake and for His servant David's sake. That defense meant the enemy would not enter the city nor launch an attack against it, but would return by the way that he came. The promise was kept when His angel was sent to strike down 185,000 Assyrians in one night. In this He showed that He protects His people by His own power, acting for His own purposes and according to His covenant with David.
God promised to defend Jerusalem against the king of Assyria and to save the city for His own sake and for His servant David's sake. That defense meant the enemy would not enter the city nor launch an attack against it, but would return by the way that he came. The promise was kept when His angel was sent to strike down 185,000 Assyrians in one night. In this He showed that He protects His people by His own power, acting for His own purposes and according to His covenant with David.