From the book of Repentance, chapter 5:
And so, the LORD, Armok, gave unto the world His prophet, Onul, to cleanse this sinless world of good. Onul began his travels in a human kingship, The Blameless Confederacy, and began his glorious work. He went into the houses and ended their sinless lives. He killed the mothers with child with many slices to the belly, and smiled as their innards spilled forth. He looked upon the children with disdain, and mercifully ended their lives in the name of the LORD. He went to their heretical churches and priests, and spilled their entrails upon the ground. He came to their shops and markets and burned all inside, he traveled to their capital and hung their king by the neck from atop his own battlements.
He traveled from the lands of the Blameless Confederacy to the lands of the elven nations. He descended upon these, the worst of the sinless, and ripped from them their eyes and hands. He burnt their trees and slaughtered their young, collecting an ear or a nose from each as a penance for their happy lives. He showed no mercy, he tortured them all and burnt their remains.
As the elven nations burned, the LORD looked down upon the work of His prophet, and it was good.
Onul looked upon the world from atop the Glorious Mountains, and saw but one race of sinless remained. He came upon the lands of the Goblinkind with vengeance, for they had offended the LORD. They sacked the lands of the Unholy People, the Dwarves, and failed to beg the forgiveness of the most unholy LORD. Onul found their fortresses, crucified their false gods on crosses of steel, and slaughtered all of their people. His work complete, Onul cast himself into the blood of Armok, and became one with the LORD.
((In short, I started as a dwarf, killed all non-dwarves, and jumped into a volcano. Pretty standard stuff.))