Dark Days Ahead?

Isaiah 5: 26 He will raise a signal for nations far away,
and whistle for them from the ends of the earth;
and behold, quickly, speedily they come!
27 None is weary, none stumbles, none slumbers or sleeps,
not a waistband is loose, not a sandal strap broken;
28 their arrows are sharp, all their bows bent,
their horses' hoofs seem like flint, and their wheels like the whirlwind.
29 Their roaring is like a lion, like young lions they roar;
they growl and seize their prey; they carry it off, and none can rescue.
30 They will growl over it on that day, like the growling of the sea.
And if one looks to the land, behold, darkness and distress;
and the light is darkened by its clouds.

The chapter begins with God pronouncing woes against the wickedness of those who claim to be His people. He had planted them in the Promised Land and given them His law to live by, only to have them reject Him and His law. The list of violations is long. As a result, He was going to do what He has often done - use those who do not claim to be his people to bring swift judgment upon them. Afterwards, all there will be is a cloud of very dark dust.