Genesis 7:1-4

Then the LORD said to Noah, “Enter the ark, you and all your household, for you alone I have seen to be righteous before Me in this time. You shall take with you of every clean animal by sevens, a male and his female; and of the animals that are not clean two, a male and his female; also of the birds of the sky, by sevens, male and female, to keep offspring alive on the face of all the earth. For after seven more days, I will send rain on the earth forty days and forty nights; and I will blot out from the face of the land every living thing that I have made.”