Isaiah 37:33-37 NIV

[33] “Therefore this is what the LORD says concerning the king of Assyria: “He will not enter this city or shoot an arrow here. He will not come before it with shield or build a siege ramp against it. [34] By the way that he came he will return; he will not enter this city,” declares the LORD. [35] “I will defend this city and save it, for my sake and for the sake of David my servant!” [36] Then the angel of the LORD went out and put to death a hundred and eighty-five thousand in the Assyrian camp. When the people got up the next morning—there were all the dead bodies! [37] So Sennacherib king of Assyria broke camp and withdrew. He returned to Nineveh and stayed there.