We also do not know how long Adam and Eve were in the Garden of Eden, where it is this author's opinion that Adam had to have been there for a very long time to enable Adam to name all of the animals.  When Eve was created, the two of them could have been there for also a very long time before being forced to leave after the eating of the Forbidden Fruit. 

See the topic on Adam and Eve for more information on what occurred that caused Adam and Eve to be forced out of the Garden of Eden.   After, Adam and Eve ate the Forbidden Fruit, God confronted them like a loving Father would seek out his children, waiting on them to admit their mistake and sin, which was threefold:

1. They listened to Lucifer, who was speaking through the possession of the serpent, and heard the full deception.  At the moment that Lucifer started to speak words against God's Character, then Adam and Eve should have stopped listening and walked away.
2. They acted on the deception, when they ate the Forbidden Fruit.
3. Believing that God was withholding knowledge and not giving His Perfect Best to Adam and Eve. 

There were consequences of the action of breaking the only commandment that God had given them.  The following is only a partial list of the consequences of eating the forbidden fruit in the Garden of Eden:

1. Adam and Eve were forced to leave the Garden of Eden because in their sinful state they could live forever with access to eat of the Tree of Life.

   Genesis 3:22

   ".. Now, lest he reach out his hand and take also of the tree of life and eat, and live forever .."

2. They lost their righteousness, which is evidenced by their attempts in covering of themselves with fig leaves afterwards.  Something was gone or changed, which many scriptures point to them having a covering of light, which is like being clothed in light.
3. They were separated from direct contact with God.  Inferred in Genesis 3:22-23, and additionally the consequence of knowing good and evil.  Before Lucifer Fell, the entire Kingdom of God was without evil, so no one knew of evil.

   Genesis 3:22-23

   22 And Jehovah God said, Behold, the man is become as one of us, to know good and evil; and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever 23 therefore Jehovah God sent him forth from the garden of Eden, to till the ground from whence he was taken.

4. Outside of the Garden of Eden, the ground and environment was cursed so that it would not yield as it was intended.  Genesis 3:17

   Genesis 3:17

   And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in [k]toil shalt thou eat of it all the days of thy life;

5. Physical death was introduced into human kind and also God's Creation on the Earth.  Without access to the Tree Of Life, death would be enviable.

   Genesis 3:22

   And Jehovah God said, Behold, the man is become as one of us, to know good and evil; and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever

6. In the future recreation of the Heavens and the Earth spoken about in Isaiah 11:6, we notice that the "wolf and lamb" shall feed together, which indicates how the Garden of Eden most likely operated with the perfection before the sin of Adam and Eve. 

   Isaiah 11:6

   And the wolf shall dwell with the lamb, and the leopard shall lie down with the kid; and the calf and the young lion and the fatling together; and a little child shall lead them.

7. There will be great pain in child birth for the woman. Genesis 3:16

   Genesis 3:16

   Unto the woman he said, I will greatly multiply thy pain and thy conception; in pain thou shalt bring forth children; and thy desire shall be to thy husband, and he shall rule over thee.

8. The Husband will rule over his wife. Genesis 3:16

   Genesis 3:16

   Unto the woman he said, I will greatly multiply thy pain and thy conception; in pain thou shalt bring forth children; and thy desire shall be to thy husband, and he shall rule over thee.

9. Adam and Eve did have the consequences which Lucifer, speaking through the serpent, told them which was they would know both "Good and Evil".  Some points on the consequences of knowing evil:

   (a) The knowledge of "evil" was Lucifer and so much more!  Eve, when she was deceived first by the Serpent, interpreted it to be God was holding back something good.  Adam was not deceived and joined Eve in the predicament because of his great love for her as pointed out in 1 Tim 2:14 "And Adam was not deceived, but the woman being deceived was in the transgression."  Adam became a model pointing to Jesus Christ through his action to join her in her predicament according to many Biblical Scholars, albeit he blamed Eve later when God spoke to them both.

   (b) All of us would take on evil traits that Lucifer exhibited because we are descendants of Adam and Eve.

   (c) The consequences have been passed down through the descendants of Adam and Eve, because we inherited their nature.  Our inherited nature is carnal and has made susceptible to be influenced by our selfishness, Lucifer, Fallen Angels and Demons in many ways:      (c1) easily following lusts of all kinds     (c2) ability for us to be deceived     (c3) ability to be oppressed or possessed,     (c4) for us to receive forbidden knowledge to pervert us, and     (c5) cause us to take on characteristics that were contrary to God's intent such as envy, hatred, murder to name just a few.  A quick example after the exit of the Garden of Eden was Cain killing Abel.

   (d) There have been those who have been won by Lucifer.  Jesus Christ told the Pharisees they were "of their father the Devil" in in John 8:44-45

   (e) In Genesis 3:22, God speaking to one another in the Trinity, confirmed the consequences of knowing good and evil.

   (4) All of these points in 9(a)-(e) are confirmed in the Book of Romans Romans 5:18 So then as through one transgression there resulted condemnation to all men, even so through one act of righteousness there resulted justification of life to all men.

10. By not having direct contact with God and having let Lucifer take dominion over the earth from Adam's authority, then all descendants would be subject to:
    (a) Separation from God,
    (b) Chaos,
    (c) Murder,
    (d) Pain,
    (e) Suffering,
    (f) Wars,
    (g) Amongst so many other things
    that have their root in both in the Satanic World around us, our new nature, and because of the damage done to the Creation. 
11. The proof of the lost dominion that Adam had over the Creation on the Earth, which Lucifer gained, is in the temptations that Lucifer gave Jesus Christ when Jesus fasted 40 days and 40 nights in the Wilderness in Matthew 4:1-11.

    Matthew 4:1-11

    ... 8 Again, the devil taketh him unto an exceeding high mountain, and showeth him all the kingdoms of the world, and the glory of them; 9 and he said unto him, All these things will I give thee, if thou wilt fall down and worship me. ...

    This could not be a temptation if Lucifer didn't have ownership and authority over the Kingdoms.  What is not additionally conveyed in the Scripture, is this temptation by Lucifer was attempting to get Jesus to take another path other that the Cross.   Lucifer was ostensibly stating to Jesus is: "You do not need to go the Cross as I can just give you everything if you simply worship me."  Obviously, Jesus did not take Lucifer's offer and took the path that would give us the righteousness to be with God.  By what Jesus Christ did on the Cross, then this took Lucifer's ownership away and so much more.  The Cross was the only path for Jesus Christ that was planned at the foundation of the World as described in Titus 1:2, Matthew 25:34, etc!  Note: It is this author's opinion that Lucifer knew of Jesus Christ's Mission but did not know the exact details. 

    Titus 1:2	in hope of eternal life, which God, who cannot lie, promised before times eternal;
    Matthew 25:34	Then shall the King say unto them on his right hand, Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world:

What to read next?

Peaceful People are Irrelevant.  Is it possible to lose Salvation?  We have eternal life.  Evolution is not real.  When a Christian suffers is there benefits from it.  Rewards in heaven.  Do we Tithe?  What does the 3rd Commandment tell us?  What is Salvation?  What is Grace and Mercy?  Is there an Age of Accountability?  Is there a place of unending punishment and exile form God?