13 But it is now time that we should proceed to lay out before you the customary table from St. Paul, by handling the subject of this day's reading, and placing it in view for you all. What then was the text read today? “Charge them that are rich in this world that they be not high-minded.” When he says, “the rich in this world,” he makes it manifest, that there are others who are rich, that is, in the world to come: such as was that Lazarus, poor as to the present life, but rich as to the future; not in gold and silver, and such like perishable and transitory store of wealth; but in those unutterable good things “which eye has not seen, nor ear heard, nor has it entered into the heart of man.” For this is true wealth and opulence, when there is good unmixed, and not subject to any change.
Not such was the case of that rich man who despised him, but he became the poorest of mankind. Afterwards at least when he sought to obtain but a drop of water, he did not get possession even of that, to such extreme poverty was he come. For this reason he calls them rich “in the present world,” to teach you that along with the present life, worldly wealth is annihilated. It goes no further, neither does it change its place with its migrating possessors, but it often leaves them before their end; which therefore he shows by saying, “Neither trust in uncertain riches;” for nothing is so faithless as wealth; of which I have often said, and will not cease to say, that it is a runaway, thankless servant, having no fidelity; and should you throw over him ten thousand chains, he will make off dragging his chains after him.
Frequently, indeed, have those who possessed him shut him up with bars and doors, placing their slaves round about for guards. But he has over-persuaded these very servants, and has fled away together with his guards; dragging his keepers after him like a chain, so little security was there in this custody. What then can be more faithless than this? What more wretched than men devoted to it? When men endeavour with all eagerness to collect so frail and fleeting a thing, they do not hear what the prophet says: “Woe unto them who trust in their power, and boast themselves in the multitude of their riches.” Tell me why is this woe pronounced?— “He heaps up treasure,” says he, “and knows not for whom he will gather it,” — forasmuch as the labor is certain, but the enjoyment uncertain.
Very often you toil and endure trouble for enemies. The inheritance of your wealth after your decease, coming as it does, in many instances, to those who have injured you, and plotted against you in a thousand ways, has assigned you the sins for your part, but the enjoyment to others!
Source: Homilies on the Statues (New Advent)