Whatever the case may be, if one of these disciples of the passions and tutors of vices thinks that the Lord—in the law of Moses—gives an indistinct license to those in sacred Orders so that they may satisfy their passions, let him tell me now: why does [the Lord] warn those who had the custody of the most holy things in the following way: "You must make yourselves holy, for I am Yahweh your God" (Lev 20:7). Likewise, why were the priests ordered, during the year of their tour of duty, to live in the temple, away from their homes? Quite obviously so that they would not be able to have carnal knowledge of any woman, even their wives, and, thus, having a conscience radiating integrity, they could offer to God offerings worthy of his acceptance. Those men, once they had fulfilled their time of service, were permitted to have marital intercourse for the sole purpose of ensuring their descent, because no one except [the members] of the tribe of Levi could be admitted to the divine ministry.
This is why, after having enlightened us by his coming, the Lord Jesus formally stipulated in the Gospel that he had not come to abolish the law, but to bring it to perfection; this is also why he wanted the beauty of the Church whose Bridegroom he is to shine with the splendor of chastity, so that when he returns, on the Day of Judgment, he will find her without stain or wrinkle, as his Apostle taught. It is through the indissoluble law of these decisions that all of us, priests and deacons, are bound together from the day of our ordination, and put our hearts and our bodies to the service of sobriety and purity; may we be pleasing to our God in all things, in the sacrifices we offer daily. "People who are interested only in unspiritual things can never be pleasing to God", says the Chosen Vessel. "Your interests, however, are not in the unspiritual, but in the spiritual, since the Spirit of God has made his home in you" (Rom 8:8-9).14