7 As you know, once religion is taken away there cannot be a well ordered, well regulated society. In this point lies the urgency to spur on priests under your guidance in order that, especially during the Holy Year, they spare no efforts so that souls entrusted to them, with their false prejudices and erroneous convictions cast aside, and hatreds and discords settled, may nourish themselves on the teachings of the Gospel and thus participate in Christian life so as to hasten the desired renewal of morals.
Source: Anni Sacri (Vatican.va)