To obey means “to comply with or follow the commands, restrictions, wishes, or instructions of…” another; having only ONE commandment to obey seems quite easy, and for years many have criticized both Adam and Eve for not obeying God’s one and only commandment, “…but of the tree of knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die”.
The Explanation for their disobedience is just as simple as having only one rule to follow. So obvious in fact that it is often overlooked.
God made Adam and Eve. They were untainted by knowledge and innocent; but lacking knowledge they were also ignorant. Devoid of knowledge, which one can only gain from learning, Eve and Adam were left defenseless against their God-given human nature to be inquisitive and adaptable. God expected the fruit to be bitten. Otherwise, it would not have existed in the first place. So do not be mistaken; it was always God’s intention.