'Knowledge' in the Bible

I told myself, "I have become greater and wiser than anyone who ruled before me in Jerusalem yes, I have acquired a great deal of wisdom and knowledge."

So I dedicated myself to learn about wisdom and knowledge, and about insanity and foolishness. And I discovered that this is also like chasing after the wind.

For with much wisdom there is much sorrow; the more someone adds to knowledge, the more someone adds to grief.

For sometimes people who strive to obtain wisdom, knowledge, and equity leave everything as an inheritance to a person who never worked for it. This, too, is pointless and greatly troublesome.

After all, to the person who is good in God's sight, he gives wisdom, knowledge, and joy, but to the sinner he gives the troublesome task of acquiring and accumulating in order to leave it to someone who is good in the sight of God. This also is pointless and chasing after the wind.

For he has absolutely no knowledge what will happen, since who can declare to him when it will come about?