And it came to pass when men began to be numerous upon the earth, and daughters were born to them, that the sons of God having seen the daughters of men that they were beautiful, took to themselves wives of all whom they chose. And the Lord God said, My Spirit shall certainly not remain among these men for ever, because they are flesh, but their days shall be an hundred and twenty years.
Now the giants were upon the earth in those days; and after that – when the sons of God went to the daughters of men, they bore children to them, those were the giants of old, the men of renown.
And the Lord God, having seen that the wicked actions of men were multiplied upon the earth, and that every one in his heart was intently brooding over evil continually, then God laid it to heart that he had made man upon the earth, and he pondered it deeply. And God said, I will blot out man whom I have made from the face of the earth, even man with cattle, and reptiles with flying creatures of the sky, for I am grieved that I have made them.
But Noah found grace before the Lord God. And these are the generations of Noah. Noah was a just man; being perfect in his generation, Noah was well-pleasing to God. And Noah begot three sons, Shem, Ham, and Japheth. But the earth was corrupted before God, and the earth was filled with iniquity. And the Lord God saw the earth, and it was corrupted; because all flesh had corrupted its way upon the earth. And the Lord God said to Noah, A period of all men has come before me; because the earth has been filled with iniquity by them, and, behold, I destroy them and the earth.
Make therefore for thyself an ark of square timber; thou shalt make the ark in compartments, and thou shalt pitch it within and without with pitch. And thus shalt thou make the ark; three hundred cubits the length of the ark, and fifty cubits the breadth, and thirty cubits the height of it. Thou shalt narrow the ark in making it, and in a cubit above thou shalt finish it, and the door of the ark thou shalt make on the side; with lower, second, and third stories thou shalt make it. And behold I bring a flood of water upon the earth, to destroy all flesh in which is the breath of life under heaven, and whatsoever things are upon the earth shall die.
And I will establish my covenant with thee, and thou shalt enter into the ark, and thy sons and thy wife, and thy sons’ wives with thee. And of all cattle and of all reptiles and of all wild beasts, even of all flesh, thou shalt bring by pairs of all, into the ark, that thou mayest feed them with thyself: male and female they shall be. Of all winged birds after their kind, and of all cattle after their kind, and of all reptiles creeping upon the earth after their kind, pairs of all shall come in to thee, male and female to be fed with thee. And thou shalt take to thyself of all kinds of food which ye eat, and thou shalt gather them to thyself, and it shall be for thee and them to eat. And Noah did all things whatever the Lord God commanded him, so did he.
~ Genesis 6