”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;”
God Will Finish What He Begins:
”He desires to restore you to Himself, to see His own purity and holiness reflected in you. And if you will but yield yourself to Him, He that hath begun a good work in you will carry it forward to the day of Jesus Christ. Pray more fervently; believe more fully” (EGWhite SC 64)
SC- Steps to Christ
Philippians 1:6 (NKJV) Bible gateway
NKJV- New King James Version