Isaiah 61:3

To console those who mourn in Zion,
To give them beauty for ashes,
The oil of joy for mourning,
The garment of praise for the spirit of heaviness;
That they may be called trees of righteousness,
The planting of the LORD, that He may be glorified.”

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;