Genesis 41:49-52

And Joseph stored up grain in great abundance, like the sand of the sea, until he ceased to measure it, for it could not be measured. Before the year of famine came, two sons were born to Joseph. Asenath, the daughter of Potiphera priest of On, bore them to him. Joseph called the name of the firstborn Manasseh. “For,” he said, “God has made me forget all my hardship and all my father’s house.” The name of the second he called Ephraim, “For God has made me fruitful in the land of my affliction.”