Then see Phil. 3:21, where we again encounter the corporeal nature of God [i.e., the corporeal nature of God the Son], and learn that our bodies can become like His - another reference to the divine potential of man.
Phil 3:12-15 has always been helpful to me in explaining to others the relationship between salvation and works. It teaches that we must press forward and not think that we have already become perfect. We must reach out and "apprehend" Christ just as he reaches out and apprehends (grabs) us - indicative of the two-way covenant aspect of salvation.