Joel 2:32 And everyone who calls on the name of the Lord will be saved; for on Mount Zion and in Jerusalem there will be deliverance, as the Lord has said, even among the survivors whom the Lord calls.
Joel laid out many warnings of what would happen to the people but also gave hope by reminding us we have a choice to make.
If we choose to continue following the world, then the only reward we shall ever see is of this world.
But if we choose to follow Christ and His will, then the rewards we will see are not limited to this world but of the great things to come when Christ returns.
Set your sites up toward heaven.