From the beginning in Genesis, "God saw and called it good". He defines, demonstrates, and desires what is Good. Goodness of God in Hebrew is Tov- the idea that it is divinely all working as it should why it should and with great pleasure for the one it should. You see, Good is up to God to dictate not you or I. When the serpent tempts Eve, he not only questions God but he causes Eve to question "good" and even redefine it in her own eyes. This is dangerous! May we always keep good and God in the same sentence, letting Him alone be what sees and defines good.