When they are intent on seizing what is not their own, let them hear what is written, Woe to him that increases that which is not his! How long does he heap up against himself thick clay? For, indeed, for a covetous man to heap up against him thick clay is to pile up earthly gains into a load of sin. When they desire to enlarge greatly the spaces of their habitation, let them hear what is written, Woe unto you that join house to house and lay field to field, even till there be no place left.
What, will you dwell alone in the midst of the earth? As if to say plainly, How far do stretch yourselves, you that cannot bear to have comrades in a common world? Those that are joined to you ye keep down, and ever find some against whom you may have power to stretch yourselves. When they are intent on increasing money, let them hear what is written, The covetous man is not filled with money; and he that loves riches shall not reap fruit thereof. For indeed he would reap fruit of them, were he minded, not loving them, to disperse them well.
But whoso in his affection for them retains them, shall surely leave them behind him here without fruit. When they burn to be filled at once with all manner of wealth, let them hear what is written, He that makes haste to be rich shall not be innocent: for certainly he who goes about to increase wealth is negligent in avoiding sin; and, being caught after the manner of birds, while looking greedily at the bait of earthly things, he is not aware in what a noose of sin he is being strangled.
When they desire any gains of the present world, and are ignorant of the losses they will suffer in the world to come, let them hear what is written, An inheritance to which haste is made in the beginning in the last end shall lack blessing. For indeed we derive our beginning from this life, that we may come in the end to the lot of blessing. They, therefore, that make haste to an inheritance in the beginning cut off from themselves the lot of blessing in the end; since, while they crave to be increased in goods here through the iniquity of avarice, they become disinherited there of their eternal patrimony.
When they either solicit very much, or succeed in obtaining all that they have solicited, let them hear what is written. What is a man profited, if he should gain the whole world, but lose his own soul? As if the Truth said plainly, What is a man profited, though he gather together all that is outside himself, if this very thing only which is himself he damns? But for the most part the covetousness of spoilers is the sooner corrected, if it be shown by the words of such as admonish them how fleeting is the present life; if mention be made of those who have long endeavoured to grow rich in this world, and yet have been unable to remain long among their acquired riches; from whom hasty death has taken away suddenly and all at once whatever, neither all at once nor suddenly, they have gathered together; who have not only left here what they had seized, but have carried with them to the judgment arraignments for seizure.
Let them, therefore, be told of examples of such as these, whom they would, doubtless, even themselves, in words condemn; so that, when after their words they come back to their own heart, they may blush at any rate to imitate those whom they judge.
Source: Pastoral Rule (New Advent)