eludes the grasp of every human being, so wisdom cannot guarantee security, much less prosperity, for the practitioner of wisdom. Wisdom, too, is “far off, and deep, very deep; who can find it out?” (Eccl. 7:24). On the one hand, wisdom—like the plant of rejuvenation that slips through Gilgamesh’s fingers—is the proverbial lost coin that can never be found. On the other hand, it constitutes the very method behind the all-consuming search for wisdom. Wisdom is Qoheleth’s one and only tool for investigating