Genesis 41:45

And Pharaoh called Joseph's name Zaphnathpaaneah (preserver of life, or: revealer of secrets); and he gave him to wife Asenath, the daughter of Potipherah, priest of On. On, or Heliopolis (throne of the sun), was the leading city in Egypt in learning, the priests of the sun goddess having a college of their own, which ranked with the best of the ancient universities. Thus it was a great honor which was conferred upon Joseph. But the hand of God, who lifted him out of the depths of his disgrace, kept him from being engulfed by the Egyptian heathendom. And Joseph went out over all the land of Egypt, thus becoming acquainted with the country, its people, and its institutions, all of which stood him in good stead as ruler.