The source of all Evil -- A surprise ..or not?

(Based on a d'var Torah for Parshat Bereishit, a description of which I heard second or third hand.)

God tells the man: eat the fruit and die!

http://www.skepticsannotatedbible.com/gen/2.html

2:16 And the LORD God commanded the man, saying, Of every tree of the garden thou mayest freely eat:
2:17 But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die.

A little later:

3:6 And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat. "And he did eat."

3:7 And the eyes of them both were opened, and they knew that they were naked; and they sewed fig leaves together, and made themselves aprons.

As the SAB points out, in 2:17, God tells Adam that if he eats the fruit, he will die. But Adam eats the fruit, and he doesn't die, he lives another 900+ years.

So it seems that the "original Sin" was not Adam and Eve eating the fruit, it was God's lie to them.

In fact, if God can't even follow His own commandments ("Thou shalt not bear false witness") then why should we?