Genesis 7:1, 4, 18-19

Then the LORD said to Noah, “Enter the ark, you and all your household, for you alone I have seen to be righteous before Me in this time.

For after seven more days, I will send rain on the earth forty days and forty nights; and I will blot out from the face of the land every living thing that I have made.”

The water prevailed and increased greatly upon the earth, and the ark floated on the surface of the water. The water prevailed more and more upon the earth, so that all the high mountains everywhere under the heavens were covered.