Cain becomes jealous of Abel because of his sisters.  
 
1 And the children began to grow stronger and taller; but Cain was hard-hearted, and ruled over his younger brother.
 
2 Often when his father made an offering, Cain would remain behind and not go with them, to offer up.
 
3 But, as to Abel, he had a meek heart, and was obedient to his father and mother. He frequently moved them to make an offering, because he loved it. He prayed and fasted a lot.
 
4 Then came this sign to Abel. As he was coming into the Cave of Treasures, and saw the golden rods, the incense and the myrrh, he asked his parents, Adam and Eve, to tell him about them and asked, "Where did you get these from?"
 
5 Then Adam told him all that had befallen them. And Abel felt deeply about what his father told him.
 
6 Furthermore his father, Adam, told him of the works of God, and of the garden. After hearing that, Abel remained behind after his father left and stayed the whole of that night in the Cave of Treasures.
 
7 And that night, while he was praying, Satan appeared to him under the figure of a man, who said to him, "You have frequently moved your father into making offerings, fasting and praying, therefore I will kill you, and make you perish from this world.&qu............