God planted a beautiful garden, the Garden of Eden. It had beautiful trees with delicious fruit - everything a person would need to eat. Right in the middle of the garden were the "tree of life" and the "tree of the knowledge of good and evil." Then,
The LORD God took the man and put him in the Garden of Eden to work it and take care of it. And the LORD God commanded the man, "You are free to eat from any tree in the garden; but you must not eat from the tree of the knowledge of good and evil, for when you eat of it you will surely die." (NIV, Genesis 2:15-17)
Adam was all alone in the garden with no one to help him. So, God put Adam into a deep sleep and took one of his ribs and formed it into a woman to be Adam's wife. Adam named her "Eve."
When the woman saw that the tree was good for food, and pleasant to the eyes, and would make one wise, she took the fruit and ate, and she also gave some to her husband, and he ate.
"That's a lie!" said the serpent. "You won't die! God knows very well that when you eat it you will become like Him - you will know good from evil!" Eve looked at the fruit on the tree of the knowledge of good and evil and saw that it looked fresh and delicious. She thought the fruit would make her wise like the serpent said it would. Eve was convinced! She picked the fruit and ate it, and she gave some to Adam to eat, too.
The fruit did not make Adam and Eve very wise, but they did realize for the first time that they were not wearing any clothes! They were embarrassed and made themselves skirts of fig leaves.
God punished the serpent by cursing his kind. They would forever have to crawl on their bellies in the dust and be enemies of mankind.
God punished Adam and Eve, and all their descendants, by making their lives hard. No longer could they live in the perfect world of the Garden of Eden. Men would have to struggle and sweat for their existence. Women would have to bear children in pain and be ruled over by their husbands. Adam and Eve were thrown out of the beautiful Garden of Eden forever.
We may know right from wrong, but sometimes, like Adam and Eve, we give in to temptation and convince ourselves that doing wrong is actually a good thing. Also, like Adam and Eve, we often find that doing wrong gets us into trouble and has other bad results.