Philippians 1:6
6 And I am sure of this, that he who began a good work in you will bring it to completion at the day of Jesus Christ.
Philippians 2:12-13
Lights in the World
12 Therefore, my beloved, as you have always obeyed, so now, not only as in my presence but much more in my absence, work out your own salvation with fear and trembling, 13 for it is God who works in you, both to will and to work for his good pleasure.