In talking about the face that there were people in the land of Nod when Cain left home, I skipped two chapters of Genesis.  I need to go back to the garden of Eden.

Eden was a perfect place.  Everything Adam and Eve needed was there.  (They didn't have to till the earth--until God cast them out of the garden.)  God provided everything they needed.  There was only one thing their Creator told them that they were forbidden to do.  Which, of course, is what they did.  Simply put, all sin is disobedience.  But if you don't know the rule, there can be no sin.  Adam and Eve knew the rule.

A discussion on Lucifer, and how he was thrown out of heaven and ended up in Eden, I'll have do some other time.  For now, he was on earth.  And he was a serpent--which was the most beautiful of all creatures.  Eve would have never have been tempted by a snake.  God cursed the serpent "...above all cattle, and above every beast of the field; upon your belly you shall go, and dust you shall eat all the days of your life." Genesis 3:14.  So the beautiful creature became the most cursed of animals--a snake.  We now call snakes serpents.  But really it was the other way around.  The serpent became a snake.  They were two different things.  We are tempted by things that look good at the moment.

After God created us, and gave us dominion over every living thing, He told us what He had provided for us to eat.  Fruits, and vegetables.  Genesis 1:29, "...Behold, I have given you every herb bearing seed...and in every tree is the fruit...to you it shall be for meat."  God went on to say that all other kinds of life would be, "given every green herb for meat..."  This made me think of heaven where the lion would lie down with the lamb.  Nobody ate anybody else.

The very last chapter of Revelation 22: in verses 1-2, "...a pure river of water of life...proceeding out of the throne of God and of the Lamb...and on either side of the river...the tree of life, which bore twelve manner of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations."  I, for one, would like to see the nations healed.  Only God can do it.

God gave Adam and Eve the tree of life in the garden of Eden.  And in the end of time, we will once again have access to this tree.  God's children will spend eternity with Him.  Eden.  Forever.