The Original Instruction
In the beginning was the Word (John 1:1), and all things were created through him and for him (John 1:3; Col. 1:16). The Triune God existed before creation, God spoke and all things were created through and carried out by Jesus Christ. The Spirit gave life where the spoken and carried out command of God was given (Gen. 1:2; John 6:63). So, in Genesis 2 God gives gives the command to work and keep the garden, and that they may eat of any tree in the garden but the tree of the knowledge of good and evil they are not to eat or they will surely die (Gen. 2:15-17).
Then, in Genesis 3 before sin and evil exist, human beings did not follow the instruction of God but the understanding of their heart. Eve tells the serpent, “God said, ‘You shall not eat of of the fruit of the tree [of the knowledge of good and evil]…neither shall you touch it.'” (Gen. 3:3). Eve somehow knew the commands of God, yet she didn’t follow his instruction but her own, and the rest is history as Adam fails to keep the garden and allows his wife to be mislead. The original instruction of God was poorly heard and followed.