121 Wherefore, those who have the care of the State and of the public good cannot neglect the needs of married people and their families, without bringing great harm upon the State and on the common welfare. Hence, in making the laws and in disposing of public funds they must do their utmost to relieve the needs of the poor, considering such a task as one of the most important of their administrative duties.
Source: Casti Connubii (Vatican.va)