From the beginning of times, since man rebelled against God, good and evil got mixed.
When listening to certain Christians we only can have the impression they do not understand the Hebrew way of talking and do not see how often idioms, parables and allegory are used. Too often they take words as names and texts literally when they are not meant as such.
After having looked at Adam we cannot pass his helper Eve. It was she who brought the man to follow her idea and to ignore God's Wish not to eat from the Tree of moral, with as consequence that they got knowledge of good and evil and came to learn pain and death.
In the second chapter of the Bereshith light is shed on the day that יהוה Elohim made earth and heavens and created a beautiful Royal Garden where man, made in the image of God, could live in peace, with the animals, to which he receives rulership (not ownership over the earth).
Worldly books in no way can give such a clear picture to man what caused everything to come into being and how there may be a solution to the wrong steps taken by the first human beings. For this, man needs to understand clearly what caused this troublesome world. The Bereshith tells the story of the origin of life and death.