What Had Adam Done?

The Lord God took the man and put him in the garden of Eden to work it and keep it. And the Lord God commanded the man, saying, "You may surely eat of every tree of the garden, but of the tree of the knowledge of good and evil you shall not eat, for in the day that you eat of it you shall surely die." (Genesis 2:15-17 ESV)

Now the serpent was more crafty than any other beast of the field that the Lord God had made. He said to the woman, "Did God actually say, 'You shall not eat of any tree in the garden'?" And the woman said to the serpent, "We may eat of the fruit of the trees in the garden, but God said, 'You shall not eat of the fruit of the tree that is in the midst of the garden, neither shall you touch it, lest you die.'" But the serpent said to the woman, "You will not surely die. For God knows that when you eat of it your eyes will be opened, and you will be like God, knowing good and evil." So when the woman saw that the tree was good for food, and that it was a delight to the eyes, and that the tree was to be desired to make one wise, she took of its fruit and ate, and she also gave some to her husband who was with her, and he ate. Then the eyes of both were opened, and they knew that they were naked. And they sewed fig leaves together and made themselves loincloths. (Genesis 3:1-7 ESV)

Adam sinned and sin and death entered the world because of him. But what did Adam do? Did he break any of the ten commandments? He cannot. They did not exist then. So, what did Adam do that caused sin and death to enter the world?

He ate something.

Dietary issues are so important that it cause sin and death to enter the world?

No. Action and performance do not count. It is his belief, or unbelief, that caused sin and death to enter the world.

Adam did not believe. Adam did not believe the Truth, the Word of God. He chose to believe in the lie, the word of the serpent. Because of his unbelief, sin and death entered the world. So, God made provision for the salvation of men by making His Son Jesus the propitiation for our sins that whosoever believe in Him shall have everlasting life.

For as by the one man's disobedience the many were made sinners, so by the one man's obedience the many will be made righteous. (Romans 5:19 ESV)

He is the propitiation for our sins, and not for ours only but also for the sins of the whole world. (1 John 2:2 ESV)

Jesus said to her, "I am the resurrection and the life. Whoever believes in me, though he die, yet shall he live, and everyone who lives and believes in me shall never die. Do you believe this?" (John 11:25-26 ESV)