James 5:2

2Your riches. The meaning may be twofold: — that he ridicules their foolish confidence, because the riches in which they placed their happiness, were wholly fading, yea, that they could be reduced to nothing by one blast from God — or that he condemns as their insatiable avarice, because they heaped together wealth only for this, that they might perish without any benefit. This latter meaning is the most suitable. It is, indeed, true that those rich men are insane who glory in things so fading as garments, gold, silver, and such things, since it is nothing else than to make their glory subject to rust and moths; and well known is that saying “What is ill got is soon lost;” because the curse of God consumes it all, for it is not right that the ungodly or their heirs should enjoy riches which they have snatched, as it were, by violence from the hand of God.

But as James enumerates the vices of which the rich brought on themselves the calamity which he mentions, the context requires, as I think, that we should say, that what he condemns here is the extreme rapacity of the rich, in retaining everything they could lay hold on, that it might rot uselessly in their chests. For thus it was, that what God had created for the use of men, they destroyed, as though they were the enemies of mankind. (137)

But it must be observed, that the vices which he mentions here do not belong to all the rich; for some of them indulge themselves in luxury, some spend much in show and display, and some pinch themselves, and live miserably in their own filth. Let us, then, know that he here reproves some vices in some, and some vices in others. However, all those are generally condemned who unjustly accumulate riches, or who foolishly abuse them. But what James now says, is not only suitable to the rich of extreme tenacity, (such as Euclio of Plautus,) but to those also who delight in pomp and luxury, and yet prefer to heap up riches rather than to employ them for necessary purposes. For such is the malignity of some, that they grudge to others the common sun and air.