Each of us has received God's favor in the measure in which Christ bestows it. Thus you find Scripture saying:
"When he ascended on high, he took a host of captives
and gave gifts to men."
"He ascended"—what does this mean but that he had first descended into the lower regions of the earth? He who descended is the very one who ascended high above the heavens, that he might fill all men with his gifts.
It is he who gave apostles, prophets, evangelists, pastors and teachers in roles of service for the faithful to build up the body of Christ, till we become one in faith and in the knowledge of God's Son, and form that perfect man who is Christ come to full stature.