You see faith is the transformer that connects all the voltage of heaven to the situation, the need in front of you. I wonder what it might be said of you, or your family, or your ministry, or your business. He did not do many miracles there because of their lack of faith. You're not expecting, you're not believing that Jesus is going to do something powerful, so He won't. The most unsettling thing about this power failure in Nazareth is these are the people who knew Jesus best.
Familiarity can breed lazy, limited faith.
Well, this account seems to tell us that our faith determines the size of the box in which God will work. If we draw a small box within which we ask Him and believe He'll work, He apparently will stay in that box. Now maybe you're facing some situations right now where you really need the full power of the Lord Jesus working for you. But honestly things have seemed pretty powerless recently. The power is there, the current of God flows undiminished.