Genesis 6:3, 5-7

The LORD said, “My Spirit will not remain in human beings forever, because they are flesh. They will live only 120 years.”

The LORD saw that the human beings on the earth were very wicked and that everything they thought about was evil. He was sorry he had made human beings on the earth, and his heart was filled with pain. So the LORD said, “I will destroy all human beings that I made on the earth. And I will destroy every animal and everything that crawls on the earth and the birds of the air, because I am sorry I have made them.”