For after seven more days I will cause it to rain on the earth forty days and forty nights, and I will destroy from the face of the earth all living things that I have made.”

And the rain was on the earth forty days and forty nights.

Now the flood was on the earth forty days. The waters increased and lifted up the ark, and it rose high above the earth.

So it came to pass, at the end of forty days, that Noah opened the window of the ark which he had made.

Forty days were required for him, for such are the days required for those who are embalmed; and the Egyptians mourned for him seventy days.