§898
Creed › … › Paragraph 4. Christ's Faithful - Hierarchy, Laity, Consecrated Life
The vocation of lay people
"By reason of their special vocation it belongs to the laity to seek the kingdom of God by engaging in temporal affairs and directing them according to God's will.... It pertains to them in a special way so to illuminate and order all temporal things with which they are closely associated that these may always be effected and grow according to Christ and maybe to the glory of the Creator and Redeemer."
Source: Catechism of the Catholic Church (Vatican.va)