Virginity or celibacy for the sake of the Kingdom of God not only does not contradict the dignity of marriage but presupposes it and confirms it. Marriage and virginity or celibacy are two ways of expressing and living the one mystery of the covenant of God with His people. When marriage is not esteemed, neither can consecrated virginity or celibacy exist; when human sexuality is not regarded as a great value given by the Creator, the renunciation of it for the sake of the Kingdom of Heaven loses its meaning.
Rightly indeed does St. John Chrysostom say: “Whoever denigrates marriage also diminishes the glory of virginity. Whoever praises it makes virginity more admirable and resplendent. What appears good only in comparison with evil would not be particularly good. It is something better than what is admitted to be good that is the most excellent good.”
In virginity or celibacy, the human being is awaiting, also in a bodily way, the eschatological marriage of Christ with the Church, giving himself or herself completely to the Church in the hope that Christ may give Himself to the Church in the full truth of eternal life. The celibate person thus anticipates in his or her flesh the new world of the future resurrection. . . .
In spite of having renounced physical fecundity, the celibate person becomes spiritually fruitful, the father and mother of many, cooperating in the realization of the family according to God’s plan.
Christian couples therefore have the right to expect from celibate persons a good example and a witness of fidelity to their vocation until death. Just as fidelity at times becomes difficult for married people and requires sacrifice, mortification and self-denial, the same can happen to celibate persons, and their fidelity, even in the trials that may occur, should strengthen the fidelity of married couples.
These reflections on virginity or celibacy can enlighten and help those who, for reasons independent of their own will, have been unable to marry and have then accepted their situation in a spirit of service. – from Familiaris Consortio (1981)