Ian Clarkson looks at the words of Paul recorded in Philippians 1:3-11 and his confidence in God completing what He started:

I thank my God every time I remember you. In all my prayers for all of you, I always pray with joy because of your partnership in the gospel from the first day until now, being confident of this, that he who began a good work in you will carry it on to completion until the day of Christ Jesus.