God looked down upon the Earth and was disgusted to see all the humans with their hearts full of hatred, hurting each other and sinning. God had enough and decided to make a flood to wipe out all life of the face of the Earth.
But God saw a man named Noah and his family, compared to the rest of the world they were nice and caring, so God called to Noah and said "Noah, I am going to make a flood that kill all life on Earth, I want you to make a ark with you, you're family and a pair of every animal on it." and Noah did so.
God called a pair of every animal of every kind to the ark and prepared the flood.
The flood lasted for 150 days and killed all life on Earth except for Noah, his family and a pair of every animal on Earth.
After 150 days the flood subsided and dried up from the Earth. Noah, his family and all the animals got off the ark, God said "Be fruitful and increase in number, the animals and plants that I have made are all yours"
Noah built an alter to the Lord and sacrificed some animals, God spelled the pleasing aroma and said in his heart "Never again will I make a flood that will kill all life on Earth even though humans are evil from birth" God then made a covenant to the life on Earth that he will never kill all life on Earth ever again, the agreement will be shown as a rainbow