God makes people perfect chiefly to carry out His will, to make you serve God. Those used by God during the Age of Grace and the Age of Law were not made perfect; it is in the Age of Kingdom that God will make perfect a group of people, and when the Millennial Kingdom truly becomes a reality, He shall use this group of people to serve Him on earth, to be priests; thus, in the future, God shall make great use of those who are made perfect. … On earth and in God’s kingdom, these people will be pillars, they will the ones who serve God, they will be priests, and thus there is great and far-reaching significance to God making people perfect.
from “How One Should Seek the Truth” in Sermons and Fellowship on Entry Into Life (I)