5 They, therefore, who rule should rule with evenhanded justice, not as masters, but rather as fathers, for the rule of God over man is most just, and is tempered always with a father's kindness. Government should, moreover, be administered for the well-being of the citizens, because they who govern others possess authority solely for the welfare of the State. Furthermore, the civil power must not be subservient to the advantage of any one individual or of some few persons, inasmuch as it was established for the common good of all. But, if those who are in authority rule unjustly, if they govern overbearingly or arrogantly, and if their measures prove hurtful to the people, they must remember that the Almighty will one day bring them to account, the more strictly in proportion to the sacredness of their office and preeminence of their dignity. "The mighty shall be mightily tormented."(2) Then, truly, will the majesty of the law meet with the dutiful and willing homage of the people, when they are convinced that their rulers hold authority from God, and feel that it is a matter of justice and duty to obey them, and to show them reverence and fealty, united to a love not unlike that which children show their parents. "Let every soul be subject to higher powers."(3) To despise legitimate authority, in whomsoever vested, is unlawful, as a rebellion against the divine will, and whoever resists that, rushes willfully to destruction. "He that resisteth the power resisteth the ordinance of God, and they that resist, purchase to themselves damnation."(4) To cast aside obedience, and by popular violence to incite to revolt, is therefore treason, not against man only, but against God.
Source: Immortale Dei (Vatican.va)