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

And rain fell upon the earth forty days and forty nights.

The flood continued forty days on the earth. The waters increased and bore up the ark, and it rose high above the earth.

At the end of forty days Noah opened the window of the ark that he had made

Forty days were required for it, for that is how many are required for embalming. And the Egyptians wept for him seventy days.