two biblical allusion (the flood and cain)

There is a reference to the Great Flood that took place in Genesis: "the origin of ancient strife, when the flood, rushing water, slew the race of giants they suffered terribly: that was a people alien to the Everlasting Lord. The Ruler made them a last payment through waters welling" (3.2) Please check out the link below at the bottom of the page where it goes through many Biblical allusions.