And Kenan, after he had begot Mahalalel, lived eight hundred and forty years, and begat sons and daughters:

And Isaac was forty years old when he took Rebekah to wife the daughter of Bethuel the Syrian of Mesopotamia and sister to Laban the Syrian.

And afterward his brother came out, and his hand holding Esau by the heel. Wherefore his name was called Jacob. And Isaac was forty years old when she bare them:

When Esau was forty years old, he took to wife Judith the daughter of Beeri, an Hittite, and Basemath the daughter of Elon, an Hittite also,

For seven days hence will I send rain upon the earth forty days and forty nights and will destroy all manner of things that I have made, from off the face of the earth."

and there fell a rain upon the earth forty days and forty nights.

And the flood came forty days and forty nights upon the earth, and the water increased and bare up the ark and it was lift up from off the earth.

And he spake unto him yet again, and said, "What if there be forty found there?" And he said, "I will not do it for forty's sake."

Moreover, Jacob lived in the land of Egypt seventeen years, so that the whole age of Jacob was a hundred and forty seven years.