Psalm 138:8 KJV — The LORD will perfect that which concerneth me: thy mercy, O LORD, endureth for ever: forsake not the works of thine own hands.
Perfection means completion, brought to the full.
The Lord will bring to the full that which concerns me.
Everything has already been paid for on the Cross. Now, the work is to complete that process in your life.
The work is to cause you to fully enjoy all that has been fully provided…until His perfection is complete in your life.