Right after several nations are issued very terrible prophecies, Isaiah writes:
For thou hast been a strength to the poor, a strength to the needy in his distress, a refuge from the storm, a shadow from the heat, when the blast of the terrible ones is as a storm against the wall
Isaiah 25:1, 4.
Isaiah knows that the nations prophesied against brought about their own destruction. Even though he could see God issuing these terrible proclamations, he was still able to praise God because of all the wonderful things He has done.
Then there is this wonderful promise about heaven:
And it shall be said in that day, Lo, this is our God; we have waited for him, and he will save us: this is the LORD; we have waited for him, we will be glad and rejoice in his salvation
It will be wonderful to know that death will never again raise its ugly head. We will never have to cry because God has saved us and we can rejoice in His salvation. What a wonderful thought! This passage is very similar to several in Revelation about what John saw in vision of the New Jerusalem.
Isaiah then gives us powerful instruction.
Trust ye in the LORD for ever: for in the LORD JEHOVAH is everlasting strength
Trust. Perfect peace. Everlasting strength. All of this can be mine and yours if we keep our mind on God.