Catechism of the Catholic Church

908 By his obedience unto death, ⁴⁴⁴ Christ communicated to his disciples the gift of royal freedom, so that they might "by the self-abnegation of a holy life, overcome the reign of sin in themselves": ⁴⁴⁵

That man is rightly called a king who makes his own body an obedient subject and, by governing himself with suitable rigor, refuses to let his passions breed rebellion in his soul, for he exercises a kind of royal power over himself. And because he knows how to rule his own person as king, so too does he sit as its judge. He will not let himself be imprisoned by sin, or thrown headlong into wickedness. ⁴⁴⁶

909 "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." ⁴⁴⁷

910 "The laity can also feel called, or be in fact called, to cooperate with their pastors in the service of the ecclesial community, for the sake of its growth and life. This can be done through the exercise of different kinds of ministries according to the grace and charisms which the Lord has been pleased to bestow on them." ⁴⁴⁸

911 In the Church, "lay members of the Christian faithful can cooperate in the exercise of this power [of governance] in accord with the norm of law." ⁴⁴⁹ And so the Church provides for their presence at particular councils, diocesan synods, pastoral councils; the exercise of the pastoral care of a parish, collaboration in finance committees, and participation in ecclesiastical tribunals, etc. ⁴⁵⁰

912 The faithful should "distinguish carefully between the rights and the duties which they have as belonging to the Church and those which fall to them as members of the human society. They will strive to unite the two harmoniously, remembering that in every temporal affair they are to be guided by a Christian conscience, since no human activity, even of the temporal order, can be withdrawn from God's dominion." ⁴⁵¹

913 "Thus, every person, through these gifts given to him, is at once the witness and the living instrument of the mission of the Church itself 'according to the measure of Christ's bestowal."' ⁴⁵²