Genesis 7:20-22

20The waters rose and covered the mountains to a depth of more than fifteen cubits. That is, about 23 feet or about 6.8 meters Or rose more than fifteen cubits, and the mountains were covered 21Every living thing that moved on land perished—birds, livestock, wild animals, all the creatures that swarm over the earth, and all mankind. 22Everything on dry land that had the breath of life in its nostrils died.