Php 1:3  I thank my God upon every remembrance of you, 
Php 1:4  Always in every prayer of mine for you all making request with joy, 
Php 1:5  For your fellowship in the gospel from the first day until now; 
Php 1:6  Being confident of this very thing, that he which hath begun a good work in you will perform it until the day of Jesus Christ: 

God's good work in us will be performed until Jesus returns- this is our faith in Jesus Christ.