Isaiah 24-26: Perfect Peace

In Isaiah 24-26, Isaiah paints a very grim picture.  The earth will be completely laid waste and totally plundered. The LORD has spoken this word. - Is. 24:3 NIV 

The devastation will be greater than anything we can comprehend and encompass all of creation from the beginning of time.  It will not be just the inhabitants of a city, or a state, or a nation or even a continent that are destroyed. 

In that day the LORD will punish the powers in the heavens above
and the kings on the earth below. They will be herded together
like prisoners bound in a dungeon; they will be shut up in prison
and be punished after many days.
- Is. 24:21-22 - NIV
 
Yet in the midst of this calamity, there will be reason for praise.  God is bringing to fruition his plan.  It will be just as it was in Egypt with the first Passover.  The Israelites, who had sprinkled the lamb's blood on their door posts, were sheltered in their houses, while the Lord struck down all the first born of the Egyptians.
 
Go, my people, enter your rooms
and shut the doors behind you;
hide yourselves for a little while
until his wrath has passed by.
See, the LORD is coming out of his dwelling
to punish the people of the earth for their sins.
The earth will disclose the blood shed upon her;
she will conceal her slain no longer.- Is. 26:20-21 NIV

Yet those who trust in the Lord God, will be in perfect peace, they will be hiding under the Rock.

You will keep in perfect peace him whose mind is steadfast,
because he trusts in you.  Trust in the LORD forever,
for the LORD, the LORD, is the Rock eternal. - Is. 26:3-4 NIV