10 If what We have just said is applicable to all priests, does it not apply with much greater force to those who possess the title and the authority of parish priests, and who, by virtue of their rank and in a sense by virtue of a contract, hold the office of pastors of souls? These are, to a certain extent, the pastors and teachers appointed by Christ in order that the faithful might not be as "children, tossed to and fro and carried about by every wind of doctrine devised in the wickedness of men," but that practicing "the truth in love," they may, "grow up in all things in him who is the head, Christ."
Source: Acerbo Nimis (Vatican.va)