OK you have to see it this way:
The riddle of man, so beautiful, so clever and yet so weak, a copy of God, but made out of clay, fascinated the thinkers and poets of Israel. They repeatedly asked the question that has haunted people down the ages: what is man made for? The endless power of this question led them to develop their own type of reflective wisdom on the nature, style and meaning of daily living.
This practical attempt to make sense of nature, man and history, taught useful knowledge, ranging from manners to basic elementary science, educating the well born young to assume leadership in the community. Some of this wisdom was embodied in short sayings, or Proverbs, some in stories, like the Book of Job, some in poetry, like the Psalms, others in meditation- like the Book of Ecclesiates.
Ecclesiastes and Job contain many attacks on pious complacency, and confessions of agnosticism and despair (its a wonder they were even included in the Sacred Writings!). For the writer of Ecclesiastes (Qoheleth), the teacher or preacher, everything seems empty: death is the only reality, the common destony of worker and sluggard alike. He teaches shrewdness, prudence, discretion, caution, moderation, but even so, the joy and mobility if youth is soon replaced with decrepit old age. The colour of life is blotted out by the cloud of faith, and that cloud can never be pierced by man.
This book provides the centre of the conception of wisdom in the Bible. He transforms the conservatism of popular wisdom into new perceptions of mental energy, not as a weary pessimist, but rather as a vigorous realist. Everything for him is hebed– empty, vanity. As nothing is permanant or certain in this life, the secret of wisdom is a detachment from it, without withdrawal. As soon as we renounce the universal expectation of reward in return for virtue, there is a deep physcological relaxation, and real critical energy can infuse the soul. He is a fund of common sense, and perceives with great shrewdness that God has put 'olam, or a sense of eternity, into men’s minds (3,11). Wisdom in human life must come to mean the love of wisdom, not simply erudition. This is what is creative.