Of course that's what the book says.... but the denial and subjugation of knowledge wouldn't seem to be an attribute of a loving God.
It seems more in keeping with the attributes of a tyranical shaman intent on keeping control.
Or, maybe, it is the commandment of a God who knew just how dreadfully and eternally destructive some knowledge would really be.
Maybe, God also wanted man to come to Him to seek his knowledge; for His glory. O the beauty and glory that Adam beheld when the Breath of God soaked into his empty body and he became a living soul, yet he sought his knowledge elsewhere.
Well, maybe... But the problem I see here is the futility of this commandment. Someone who is not able to differentiate between good and evil cannot understand why disobeying is wrong. This was only possible after they ate the fruit of the "tree of knowledge of good and evil". So the fault is on him who made this tree accessible. It's like leaving a sharp knife or a loaded gun accessible to your 3 year old child and telling him not to touch these items.
BTW, as God is considered almighty why didn't he just make... let's say a "watermelon of forgetting the knowledge of good and evil" and told Adam and Eve that it is very delicious and that they should try it?
But of course these stories (especially that of Adam and Eve) were made up to explain why reality is the way it is and not as it should be. Pretty much like those stories I was told in kindergarten which explained why the tip of the foxes tail is white or why the bear and the rabbit have only a short tail (as far as I know they got trapped in somewhere and used force to liberate themselves but had to leave their tail behind and since then all bears and rabbits bla bla... some kind of Lamarckism y'know).