Paul is writing from a Roman Prison to his beloved brothers & sisters in Philippi to encourage them that Jesus Christ is doing a good work in them, and He is not going to stop until the work that He started is finished (Philippians 1). Just as The Lord is still working on Paul’s life even while he’s in prison, so God will accomplish His perfect work in your life. The Holy Spirit will keep working on you until the day you see Jesus Christ, either when you die and go to heaven, or when He takes you up as His Bride to be with Him in the Rapture of the church (John 14). The Holy Spirit of God will continue His work in you. And that is based on God’s faithfulness, not yours. He hasn’t taken you this far to abandon you.