In Genesis Chapter 5 we read the following:

"This is the book of the genesis of mankind in the day God made Adam, whom He made in God's image.  He made them male and female, and blessed them; and the day He made them He called his name Adam.  Now Adam lived two hundred and thirty years, and begot a son according to his form and image, and named him Seth.  After he begot Seth, the days of Adam were seven hundred years; and he begot sons and daughters.  So all the days Adam lived were nine hundred and thirty years, and he died." (Genesis 5:1-5)

In verse 5 we read that Adam died.  However, it was not the will of God for His creation to experience death.  But if it's not the will of God, then how did it come to pass?  Can anything happen against God's will?  Isn't God the Almighty?

God created mankind, and blessed them.  This is God's will.  God also gave Adam the free will to choose.  This is also God's will to grant man the free will.  However, it was through the will of man and due to the envy of the devil that death has entered into the world.  God's will was to create man and bless them.  His will was that man would live in Harmony with Him and with His creation.  God's will was for man to live forever in perfect union and communion with God.  Man, however, abused the gift of free will and chose for himself death instead of life.  It wasn't God's will, but God allowed it because he values the free will of man.

So instead of living in perfect harmony with God, man now experiences death just like how Adam died.  He experiences murder just as Cain killed his brother Abel.  Man experiences toil since the earth was cursed due to man's ill choices.  Sicknesses spread in the world as a consequence to man's choices.  This was never God's will, but he allowed it because he values the free will of man.

But at what lengths would God go to protect the free will of man? God allowed Adam to stretch his hand and eat from the tree of knowledge of good and evil and disobey God's direct commandment, knowing very well that this will cause God to sacrifice His Only Begotten Son in order to save man and restore him to his original condition.  This is the length that God will go to protect our free will.

God's will leads to a life of blessings.  Man's will leads to death and misery.  Yet man continues on a daily basis to choose against God's will, and God continues to allow it because He values it.  If God values man's free will that much, then we have just discovered the best gift we can give back to God, which is our own free will.  We are to surrender our free will to Him and tell Him, let my will be your will and let my ways be your ways.  We should follow our Lord's example in saying "... not as I will, but as You will." (Matthew 26:39)  We should tell Him "Thy will be done" (Luke 11:2) knowing and trusting that this is the best choice that we can ever make in our lives.