Hello Peter, you have me thinking on your question of the lie told to Eve in the Garden. I think a better answer than mine was given by Soren Kierkegaard in his 1849 book The Sickness Unto Death. "Sin is: in despair not wanting to be oneself before God... Faith is: that the self in being itself and wanting to itself is grounded transparently in God." There's a lot to think about here. It seems to come to a sort of integrity before the creator. If one believes that by following in God's plan and identity one cannot truly be ones self, then out of a false sense of integrity a separation from God is completed. I can see in this the temptor's lie: Be your own person, be who you really are, God intended you to be this person, truly yourself, but to do that you must deny God.
That's helpful to me, not sure if it is to you.