81 In an ideal home the parents, like Tobias and Sara, beg of God a numerous posterity "in which Thy name may be blessed forever," and receive it as a gift from heaven and a precious trust; they strive to instill into their children from their early years a holy fear of God, and true Christian piety; they foster a tender devotion to Jesus, the Blessed Sacrament and the Immaculate Virgin; they teach respect and veneration for holy places and persons. In such a home the children see in their parents a model of an upright, industrious and pious life; they see their parents holily loving each other in Our Lord, see them approach the Holy Sacraments frequently and not only obey the laws of the Church concerning abstinence and fasting, but also observe the spirit of voluntary Christian mortification; they see them pray at home, gathering around them all the family, that common prayer may rise more acceptably to heaven; they find them compassionate towards the distress of others and see them divide with the poor the much or the little they possess.
Source: Ad Catholici Sacerdotii (Vatican.va)