'Forty Days' in the Bible

For in seven days I will cause it to rain on the earth for forty days and forty nights, and I will wipe from the face of the ground every living thing that I have made."

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

The flood engulfed the earth for forty days. As the waters increased, they lifted the ark and raised it above the earth.

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

They took forty days, for that is the full time needed for embalming. The Egyptians mourned for him seventy days.