I began the good work in you and I will finish it.
Philippians 1:6 (WEB)
being confident of this very thing, that he who began a good work in you
will complete it until the day of Jesus Christ.
Before the foundation of the world, God set a plan in motion. He saw you and He saw me and He made provision through His Son, Jesus Christ for us to be born into His family. (Ephesians 1:3-6) It was because of His great love for us that He devised a plan for us to be able to do the good works that He prepared for us to do even before the world was created. (Ephesians 2:10)
It has always been His work, not ours. It is God's heart, God's vision, and God's power that will bring about all that He has planned and purposed in our lives. That is why the Apostle Paul encourages the Philippians in today's promise to be confident in knowing that the One who began a good work in them would would perform it until the day of Jesus Christ.
The NIV Bible says that God... will carry it on to completion, the NLT Bible says that God ...will continue his work until it is finally finished. Whatever translation you prefer, be encouraged in knowing that God has committed His whole heart to you finishing your race.
He started the good work in you and He will finish it on the day that our Lord and Savior Jesus Christ returns to bring us home.