Matthew Poole and continuators on James 5:2

2 Your riches are corrupted , and your garments are moth-eaten.

Either by Riches, he means the general, and by Garments, Gold and Silver, the particulars in which their Riches consisted; and then being corrupted, is to be taken generally, as comprehending the several ways whereby the several kinds of their Riches were spoiled: Or else, by Riches, he understands such things as were liable to Corruption, or Putrefaction, as Corn, Wine, Oyl, which were a great part of their Riches.

Costly Garments, in which Rich Men are wont to pride themselves; and under them may be comprehended all such Clothes as may be eaten by Worms, or Moths.

Marginal references: Matth. 6.20.