Genesis 41:50

“And unto Joseph were born two sons, etc.] The word for “born” is singular; hence Ben Melech conjectures that they were twins: and this was before the years of famine came; or “the year of famine” f1740; the first year: which Asenath, the daughter of Potipherah priest of On, bare unto him; which is observed, to show that he had them by his lawful wife; whom the Targum of Jonathan wrongly again makes the daughter of Dinah, and her father prince of Tanis, the same with Zoan; whereas this was “On” or “Heliopolis”, a very different place; so Artapanus says f1741, that Joseph married the daughter of the priest of Heliopolis, by whom he had children; and another Heathen writer f1742 mentions their…”

“unto Joseph were born two sons--These domestic events, which increased his temporal happiness, develop the piety of his character in the names conferred upon his children.”

“41:50-52 In spite of his position and authority, Joseph never abandoned his heritage; he gave Hebrew names to his two sons. • Manasseh: Joseph’s prosperity and success made him “forget” the misery of separation from his family. • Ephraim: In so naming him, Joseph proclaimed his gratitude to God for making him “fruitful” in Egypt.”