39 We find further comforting reasons for continuing to adhere to the observance of the discipline of clerical celibacy in the exaltation of virginity by the Eastern Fathers. We hear within Us, for example, the voice of St. Gregory of Nyssa, reminding us that "the life of virginity is the image of the blessedness that awaits us in the life to come." (79) We are no less assured by St. John Chrysostom's treatise on the priesthood, which is still a fruitful subject for reflection. Intent on throwing light on the harmony which must exist between the private life of him who ministers at the altar and the dignity of the order to which his sacred duties belong, he affirmed: ". . . it is becoming that he who accepts the priesthood be as pure as if he were in heaven." (80)
Source: Sacerdotalis Caelibatus (Vatican.va)