Genesis 2:17-18

but [only] from the tree of the knowledge (recognition) of good and evil you shall not eat, otherwise on the day that you eat from it, you shall most certainly die [because of your disobedience].” Now the LORD God said, “It is not good (beneficial) for the man to be alone; I will make him a helper [one who balances him—a counterpart who is] suitable and complementary for him.”