You should prolly reread your Bible Anon. Tree of the knowledge of Good and Evil. God created it and placed it in the Garden of Eden.
It is the spiritual equivalent to placing a loaded .357 in a Toddlers toybox. Then telling the Toddler about it and telling them not to play with it.
Genesis 2:16-17
And the LORD God commanded the man, saying, Of every tree of the garden thou mayest freely eat:
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.