And see His unspeakable prudence. For neither did He say, “Thou dost but leave them to others;” since this too is pleasant to men: He alarms them however on a new ground, by signifying that not even this do they obtain: since though men defraud not, there are those which are sure to defraud, “the moth” and “the rust.” For although this mischief seem very easy to restrain, it is nevertheless irresistible and uncontrollable, and devise what thou wilt, thou wilt be unable to check this harm.