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Creed › … › Paragraph 4. Christ's Faithful - Hierarchy, Laity, Consecrated Life
Participation in Christ's kingly office
"Moreover, by uniting their forces let the laity so remedy the institutions and conditions of the world when the latter are an inducement to sin, that these may be conformed to the norms of justice, favoring rather than hindering the practice of virtue. By so doing they will impregnate culture and human works with a moral value."
Source: Catechism of the Catholic Church (Vatican.va)