Ephesians 4 : 11-16

As for God’s gifts, to some He gave to be apostles, to others prophets, or even evangelists, or pastors and teachers. So He prepared those who belong to Him for the ministry, in order to build up the Body of Christ, until we are all united in the same faith and knowledge of the Son of God. Thus, we shall become the perfect Man, upon reaching maturity and sharing the fullness of Christ.

Then no longer shall we be like children tossed about by any wave or wind of doctrine, and deceived by the cunning of people who drag them along into error. Rather, speaking the truth in love, we shall grow in every way towards Him who is the Head, Christ. From Him, comes the growth of the whole body to which a network of joints gives order and cohesion, taking into account and making use of the function of each one.

So the Body builds itself in love.