There is very little written about Abel in the Bible, and yet, there is much that we can learn from the story of Cain and Abel. This is a story of what is in a man’s heart and how that affects his life.
In Abrahamic religions Cain and Abel were two of the sons of Adam and Eve. They worked as food producers for their family; Cain was a crop farmer, and Abel was a shepherd.
Very little else is known about Abel, except that he found favor in God's eyes by offering him a pleasing sacrifice. Also Abel was hardworking and smart, his heart cared how to do good things. He had never showed off, because his soul was full of love and mercy. God prefered Able's gift and as result Abel was murdered by his older brother in terrific way.
Cain, who had rotten soul was jealous, he had never minded ones own business, he was selfish indeed. Cain killed Abel, committing the first murder, he cheated on his brother, he cheated on God's law. He was faint and weak before the power of evil and there was something that made him do harm, more than good .
God expelled Cain, but lightened his punishment after Cain complained that his original punishment was too difficult to bear. Cain didn't have any chances to fix it up, because he had acted unpardonable. Cain was the first person born, and Abel was the first to die.