Chapter 21 — Part II: The Sacraments — Holy Orders
Section 11. This subject demands all the greater attention, since in these days the faithful often sin gravely in this respect. Some there are who embrace this state to secure the necessaries of life, and who, consequently, seek in the priesthood, just as other men do in the lowest walks of life, nothing more or less than gain. Though both the natural and divine law lay down, as the Apostle remarks, that he who serves the altar should live by the altar; yet to approach the altar for the sake of gain and money is one of the very gravest of sacrileges.