Because the earth was full of corruption, corruption, and lawlessness, God said to Noah: "You must build an ark of gopher wood, room by room, and anoint it with rosin on the inside and outside. This is how the ark was built..."
When the ark was finished, he said, "You are to enter the ark, you and all your household, for I have seen that you are righteous in my sight in this generation. You are to take with you seven males and seven females of every clean animal, and seven males and seven females of each of the birds of the air, so that they may leave seed for them to live on all the earth. For in seven days I will send rain on the earth for forty days and nights, and I will destroy every living creature that I have made from the earth."
Noah followed God's command and took all kinds of animals, seven males and seven females, as well as his sons and daughters-in-law, into the ark.
The flood destroyed the world.