Links: Explantation of Project and Chapter 1 Previous Chapter
With each passing day more fear did contaminate the heart of the god of Adam. And as time passed he realized that the children of Adam would be annihilated by the nephilim.
At first he thought to command Adam's descendants to stop their attacks on the nephilim for they were only being slewn in their own attacks. But, upon considering this God realized that if the children of Adam made peace with the nephilim they would eventually trade goods and knowledge with them, and realize the true genesis of their god. They would lose the need for him.
And so God devised a plan to flood the earth. This was now within his power for the children of Adam had been empowering him with their worship for many years. He would flood the earth and destroy all but one family who was most loyal to him.
And he saw that Noah was the most subservient man and chose him to save from his wrath.
And God said unto Noah, "The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth."
"Make thee an ark of gopher wood. And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits. A window shalt thou make to the ark, and in a cubit shalt thou finish it above; and the door of the ark shalt thou set in the side thereof; with lower, second, and third stories shalt thou make it."
"And, behold, I, even I, do bring a flood of waters upon the earth, to destroy all flesh, wherein is the breath of life, from under heaven; and every thing that is in the earth shall die. But with thee will I establish my covenant; and thou shalt come into the ark, thou, and thy sons, and thy wife, and thy sons' wives with thee."
"And of every living thing of all flesh, two of every sort shalt thou bring into the ark, to keep them alive with thee; they shall be male and female. Of fowls after their kind, and of cattle after their kind, of every creeping thing of the earth after his kind, two of every sort shall come unto thee, to keep them alive. And take thou unto thee of all food that is eaten, and thou shalt gather it to thee; and it shall be for food for thee, and for them. Thus did Noah; according to all that God commanded him, so did he."
And God knew the impossibility of saving all creatures from the flood and so saw to it that Noah only remembered the creatures that he fancied.
The nephilim, fallen angels, and demonic beings, being practiced in divinatory arts, learnt of Gods plans to flood the earth and prepared to survive the coming of the flood. Knowing that many animals, men, spirits, and gods would be killed by the flood unless action was taking, they gathered all that would come with them and retreated into deep dark caves and into abyssal realms where the waters would not reach.
This is the reason why many pagan gods can be found amongst catalogues of demons, for many chose to stay in the abyssal realms even after the flood.