The Genesis narrative tells how God, grieved by the wickedness of mankind, decided to destroy the corrupted world. However, "Noah found grace in the eyes of the lord", so God instructs Noah to build the Ark and take on board his family and representatives of the animals and birds. The flood rises to cover the Earth, but at its height "God remembered Noah", the waters abate, and dry land appears. God promises never to do it again, displaying a rainbow as a guarantee.
Great project.