Be Strong! Traditional

Strength ebbs and flows. The task list gets too long and defeats us before we even start. The expectations at work or home, or in our own mind become overbearing. We talk to God. We have been told that he can, "strengthen us for the task" and that "he is able." Does it help? Has it made a difference? Were our expectations met? Or were we disappointed? Did we get something wrong? How are we to understand a passage like Isaiah 35:4, Be strong, do not fear; your God will come?