Genesis 41:49

Joseph was thirty years old when he stood before Pharaoh king of Egypt. Joseph went out from the presence of Pharaoh, and went throughout all the land of Egypt.

In the seven plenteous years the earth produced abundantly.

He gathered up all the food of the seven years which were in the land of Egypt, and laid up the food in the cities. He stored food in each city from the fields around that city.

To Joseph were born two sons before the year of famine came, whom Asenath, the daughter of Potiphera priest of On, bore to him.

Joseph called the name of the firstborn Manasseh, “For”, he said, “God has made me forget all my toil, 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.”