22 The Church's awareness of its divine mission coincided with its birth. Both events are celebrated at Pentecost. Both will develop together. The Church, that is, will develop as a well-organized, hierarchic and social body, and at the same time its awareness of its vocation, of its inner nature, its doctrine, and its mission, will likewise develop. That is what St. Paul prayed for when he said: "And this I pray, that your charity may more and more abound in knowledge and in all understanding." (9)
Source: Ecclesiam Suam (Vatican.va)