Noah was a good man who obeyed God. Everyone else in the world had become bad.
God told Noah that He was going to send a flood to destroy all living things. He told Noah to build a big boat (known as Noah's ark).
God sent two of each kind of bird and animal to Noah to load in the ark. He sent more than two of some of the animals. Noah also loaded his three sons, their wives, and his own wife. It began to rain. God closed the door.
It rained for 40 days and 40 nights. Everything on earth was under water. Everyone on earth died, but Noah and his family were safe and dry.
When the rain stopped and the land dried, God sent a rainbow as a sign of the promise that He would never again destroy the earth with water.