This story was written by me, it's my own version of Cain's life. This is the last part, the ending.
"And so I come before you," continued Michael, "sent before you by my father to tell you his will."
With this, Michael unflunged his wings and hovered up to the air, and his next words were not calmed as the previous ones, but strong and deep. And they resonated across the wide chamber, and all the other noises seemed to silent themselves to let this new voice speak.
And then Michael, hovering in the air, threw his finger at the first-born, and with this the fires went wild, as his hair did, and the sun behind him seemed to intensify, sending its rays so strongly that Cain would have been blinded if it weren't for Michael, who blocked them, making his siluoette contrast against the bright of the day. Then Michael, with his sword in one hand and his other hand aiming at Cain, spoke:
"Cain, son of Adam. Your sins weight heavy upon your soul. Of your crime, God finds you guilty. He offered you attonement, yet you refused it. He asked you to honor Him, yet you refused Him. He asked you to turn from evil, yet you refused it. For these sins, Cain son of Adam, God condems you. From this day forward you shall be known as the Traitor, the one who brings ill. From this day forward you are exiled from Heaven and cast away from the light of your father, as Adam was before you. Death will never find you, and you will never find it, but sadness will always be by your side. From this day forward, as long as you walk this earth, you and your kin will know no love, no peace, no satisfaction. You will eat only ashes, you will drink only blood. You will stay as you are now, never dying, living on. Rich yet poor. Your house will always walk in shadows, and all you and they touch will crumble to dust, and it will weight upon your hearts. This is the will of our Father, and so you shall follow it."
Said this, Michael disapeared with a flash, and all the noises returned, and the fires calmed down, and the rays of the sun returned to their normal bright. But Cain wasn't calmed. His heart hurt, and confusion crept over him. For he did not understand. God had asked him to sacrifice that which he loved the most, and so he had done, yet now he was punished. Abandoned by God and by Lilith, Cain sat alone in that big chamber in the empty land of Nod.