God will Defend Jerusalem from Assyria

"Therefore thus says the LORD concerning the king of Assyria: 'He shall not come into this city, Nor shoot an arrow there, Nor come before it with shield, Nor build a siege mound against it. By the way that he came, By the same shall he return; And he shall not come into this city,' Says the LORD. 'For I will defend this city, to save it For My own sake and for My servant David's sake.'" Isaiah 37:33-35

COMMENTARY - ISAIAH 37:33-35
33. with shields--He did come near it, but was not allowed to conduct a proper siege.
bank--a mound to defend the assailants in attacking the walls.

35. I will defend--Notwithstanding Hezekiah's measures of defense (2Ch 32:3-5), Jehovah was its true defender.
mine own sake--since Jehovah's name was blasphemed by Sennacherib (Isa 37:23).
David's sake--on account of His promise to David (Ps 132:17, 18), and to Messiah, the heir of David's throne (Isa 9:7; 11:1). JFB 

View Section - Isaiah 37:21-36