Time passed. Yosef the son of Yaakov and viceroy of the great Egyptian empire, was gone. All his brothers had also passed away. A new era had arisen in Egypt, and although Bnei Yisrael weren’t aware of it, it was a turn for the worse.
No one could argue that Yosef had ruled Egypt with wisdom and fairness for 80 years. Yet that was all ancient history. The new king Paraoh was no longer a friend of the Jews.
Each of the 5 books of the Torah contain around 10 Parshiyos (plural of Parsha), some more, some less. Now, don’t get confused… The first Parsha is always the same name as the book:
Sefer Bereishis and Parshas Bereishis; Sefer Shmos and Parshas Shmos; Sefer Vayikra and Parshas VaYikra; Sefer BaMidbar and Parshas BaMidbar; Sefer Devarim and Parshas Devarim.
The wording of the Torah is “a new king arose over Egypt that did not know Yosef.”
Two great Rabbis, Rav and Shmuel, disagree over the meaning of the “new king.”
Rav said that indeed he was a new king. Every king in Egypt was called Paraoh, so the old Paraoh died and now a new one took over.
Shmuel was of the opinion that this “new” king was actually the same person, but his attitude changed for the worse. He now acted like a “new king” who never knew Yosef! What nerve!