'Know Good and Evil' in the Bible

And Jehovah God will cause to grow out of the earth every tree pleasant to the sight, and good for food; and the tree of lives in the midst of the garden, and the tree to know good and evil.

But from the tree to know good and evil thou shalt not eat from it, for in the day of thy eating from it, dying, thou shalt die.

And Jehovah God will say, Lo, Adam became as one from us, to know good and evil: and now lest he shall send forth his hand and take also of the tree of lives, and eat, and live to eternity: