Zoroaster lived around 2000 BCE and at the age of 30, he had a series of revelations in which he saw one entirely good, uncreated and eternal God called Ahura Mazda.
We exercise our free choice and descend from the spiritual plane to the material plane.
We cannot repent unless we have first gone astray.
What is in your heart? That is the question the story of Cain and Abel in the Old Testament seeks to answer.
Cain, a farmer, became enraged when the Lord accepted the offering of his brother, a shepherd, in preference to his own.