Gensis 2:9 And out of the ground the LORD God made every tree grow that is pleasant to the sight and good for food. The tree of life was also in the midst of the garden, and the tree of the knowledge of good and evil.
God created all things, including this garden, with many trees, yet two distinct trees above the rest. 1st, the tree of life, sustainer of life. This is the tree that God will later ensure they dont partake of after they partook of the other, tree of the knowledge of good and evil. Why? Because they would most likely be sealed in this eternal state of sin. He loves man to much for that. The tree of the knowledge of good and evil, is decieving in that they already had good. Its only evil that became known to them. God doesnt with hold any good from man. However, He allowed this tree of temptation to be there. Why? God didnt make robots. He didnt force His love & fellowship upon man. To have a meaningful relationship, there MUST be a meaningful choice involved. Even if that choice means men reject Him.