Ephesians 1:19

And (so that you will begin to know) what the immeasurable and unlimited and surpassing greatness is His (active, spiritual) power is in us who believe. These are in accordance with the working of His mighty strength. 

We don’t need to look any farther than the cross to find the power we need to overcome in our daily lives. If we would only believe and act on the word of God and the salvation brought to us through Jesus. When we turn away from discouragement, shut the door on fear, and concentrate on the living word, the power of God will manifest.