2 Corinthian 12:9
Each time he said, “My grace is all you need. My power works best in weakness.” So now I am glad to boast about my weaknesses, so that the power of Christ can work through me

Ephesians 3:20
 Now to Him who is able to do exceedingly abundantly above all that we ask or think, according to the power that works in us,

It's important to remind ourselves that
- In Christ we are a new creation; his Spirit lives within us. We have been renewed, we have a new self -- and the purpose of that new self is to be conformed to the image of Christ,