Philippians 1 6
being confident of this very thing, that He who has begun a good work in you will complete it until the day of Jesus Christ;
Compare with other 3 random translations
ASV Philippians 1:6being confident of this very thing, that he who began a good work in you will perfect it until the day of Jesus Christ:
CSB Philippians 1:6I am sure of this, that he who started a good work in you will carry it on to completion until the day of Christ Jesus.
AMP Philippians 1:6And I am convinced and sure of this very thing, that He Who began a good work in you will continue until the day of Jesus Christ [right up to the time of His return], developing [that good work] and perfecting and bringing it to full completion in you.