'Forty Days' in the Bible

In seven days, I will cause it to rain on the earth for forty days and forty nights. Every living thing that I have made, I will destroy from the surface of the ground."

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

The flood was forty days on the earth. The waters increased, and lifted up the ship, and it was lifted up above the earth.

It happened at the end of forty days, that Noah opened the window of the ship which he had made,

Forty days were fulfilled for him, for that is how many the days it takes to embalm. The Egyptians wept for him for seventy days.