27 For these reasons, venerable brethren, your work will be most useful and salutary if you employ with us every industry and effort which God has given you in order to avert the dangers and evils of human society. Strive with all possible care to make men understand and show forth in their lives what the Catholic Church teaches on government and the duty of obedience. Let the people be frequently urged by your authority and teaching to fly from the forbidden sects, to abhor all conspiracy, to have nothing to do with sedition, and let them understand that they who for God's sake obey their rulers render a reasonable service and a generous obedience. And as it is God "who gives safety to kings,"(33)and grants to the people "to rest in the beauty of peace and in the tabernacles of confidence and in wealthy repose,"(34) it is to Him that we must pray, beseeching Him to incline all minds to uprightness and truth, to calm angry passions, to restore the long-wished - for tranquility to the world.
Source: Diuturnum (Vatican.va)