Chapter 11 — Part I: The Creed — Article IX: The Holy Catholic Church; the Communion of Saints
Section 64. The same may be observed in the Church. She is composed of various members; that is, of different nations, of Jews, Gentiles, freemen and slaves, of rich and poor; when they have been baptised, they constitute one body with Christ, of which He is the Head. To each member of the Church is also assigned his own peculiar office. As some are appointed apostles, some teachers, but all for the common good; so to some it belongs to govern and teach, to others to be subject and to obey.