'Knowing' in the Bible

And the Lord God said, "Now that the man has become like one of us, knowing good and evil, he must not be allowed to stretch out his hand and take also from the tree of life and eat, and live forever."

and a man has sexual relations with her without her husband knowing it, and it is hidden that she has defiled herself, since there was no witness against her, nor was she caught --

Someone went out to the field to gather some herbs and found a wild vine. He picked some of its fruit, enough to fill up the fold of his robe. He came back, cut it up, and threw the slices into the stew pot, not knowing they were harmful.

Surely people go through life as mere ghosts. Surely they accumulate worthless wealth without knowing who will eventually haul it away."

So what advantage does a wise man have over a fool? And what advantage does a pauper gain by knowing how to survive?