This "good news," or Gospel of Salvation, was told to Adam and Eve as well as to the shepherds on the plains of Bethlehem hundreds of years afterward, so that all could have a chance to obey God by being made free from the power of Satan.
"They traded their happiness for the knowledge of wrong."
CAIN and Abel were the first brothers who ever lived on the earth. Cain, the elder brother, was a farmer. Abel was a shepherd, and cared for his father's sheep.
The Bible does not tell us about them when they were boys, but when they were grown it says they both brought offerings to the Lord. Abel brought a lamb as his offering, but Cain brought the fruits of the ground.