5. Original Sin

How could they have sinned since sin only originated AFTER the apple was eaten?

Why was it a sin for Adam and Eve to disobey god's instruction to stay away from "the tree"?

Why would a voice out of nowhere have any more authority than a voice from a creature that they could see?

 

How were they to know that the serpent wasn't god? Changing his mind as he does throughout the old testament.