Ecclesiastes 4:5

There ought certainly to be activity according to our calling; indolence is self-destruction: "The fool foldeth his hands, and eateth his own flesh." He layeth his hands together (Prov 6:10-24:33), - placeth them in his bosom, instead of using them in working, - and thereby he eateth himself up, i.e., bringeth ruin upon himself (Psa 27:2; Mic 3:3; Isa 49:26); for instead of nourishing himself by the labour of his hands, he feeds on his own flesh, and thus wasteth away. The emphasis does not lie on the subject (the fool, and only the fool), but on the pred.

Solomon, having shown the vanity of this world in the temptation which those in power feel to oppress and trample upon their subjects, here further shows, I. The temptation which the oppressed feel to discontent and impatience (Ecc 4:1-3). II. The temptation which those that love their case feel to take their case and neglect business, for fear of being envied (Ecc 4:4-6). III. The folly of hoarding up abundance of worldly wealth (Ecc 4:7, Ecc 4:8). IV. A remedy against that folly, in being made sensible of the benefit of society and mutual assistance (Ecc 4:9-12). V. The mutability even of royal dignity, not only through the folly of the prince himself (Ecc 4:13, Ecc 4:14), but through the fickleness of the people, let the prince be ever so discreet (Ecc 4:15, Ecc 4:16). It is not the prerogative even of kings themselves to be exempted from the vanity and vexation that attend these things; let none else then expect it.

4:5-6 Fools do not even try to succeed and end up impoverished. Others frantically devote two handfuls—all their time and effort—to hard work in pursuit of fleeting wealth that they will have no time to enjoy (cp. Prov 23:4-5). Wise people practice moderation and contentment (quietness).