Philippians 1:6

"He which hath begun a good work in you will perform it until the day of Jesus Christ"

A little cryptic, this. After all, what, precisely, is the good work that was begun? I think the only thing that fits is the entire transformation brought about by belief, by salvation. That is the work that God works in the believer. It touches every aspect of life and cannot be reduced. It cannot be contained. A believer cannot say this part of my life has been affected, this part has not.

It (the work of transformation) is also ongoing. It is a work for everyday like brushing one's teeth. Not something that happens all at once. Journey, not destination.