Since the Creator of all things has established conjugal society as the beginning and basis of human society and, by His grace, has made it a great mystery in Christ and the Church (cf. Eph. 5:32), the apostolate of married persons and families is of unique importance for the Church and civil society.

Christian husbands and wives are cooperators in grace and witnesses of faith for each other, their children, and all others in their household. They are the first to communicate the faith to their children and to educate them by word and example for the Christian and apostolic life. They prudently help them in the choice of their vocation and carefully promote any sacred vocation which they may discern in them. ~Second Vatican Council’s Decree On The Apostolate of the Laity, #11