That Scary Part of Amos 5

Woe to you who desire the day of the Lord!
For what good is the day of the Lord to you?
It will be darkness, and not light.
Is not the day of the Lord darkness, and not light?
Is it not very dark, with no brightness in it?   (Amos 5:18-20)

When Pastor read those verses, I hated it.  
Where's the hope?
So, you're waiting for the day of the Lord?  
Sounds like Amos is saying, "Tough noogies.  Ain't you gonna be surprised?  It's going to be terrible!"

But what about the pillar of cloud (Ex 14:20)?  It was darkness to the one side, but light to the other.  That pillar was protection for the people of God; it separated them from those who would harm them.