This verse isn't just for the good days. Every day filters through the hand of God. Even the days that are challenging, the days that stretch us, and even the days that bring us right to our knees. No matter what we face, we can choose to rejoice. It isn't always easy. We can have hope and joy because in John 16:33 Jesus tells us this:
I have told you these things, so that in me you may have peace. In this world you will have trouble. But take heart! I have overcome the world.This verse tells us two things, we WILL have trouble, and we don't have to worry, Jesus has overcome. If there is nothing else about the day that we can rejoice in, then we can rejoice that the God who lives within us has overcome the world.