Joseph made governor of Egypt GEN 41:41

Joseph, imprisoned in Egypt, is summoned to interpret Pharaoh's dream of seven lean cows devouring seven fat ones; he explains that it foretells seven years of abundance followed by seven years of famine, and proposes a plan to store grain. Pharaoh is persuaded and sets Joseph over all of Egypt, giving him his signet ring and a chariot to ride in, lifting him from prisoner to governor in a single day.

This event sets up the rest of Joseph's story: the famine he predicted will later drive his brothers to Egypt to buy grain, leading to the reunion of Jacob's family. It also shows Joseph's rise from slavery and prison to the second-highest place in Egypt, which Genesis presents as God working through hardship. Without this appointment, the family's eventual move to Egypt, and so the whole Exodus narrative, would not have been set in motion.

The ruler in this account is an unnamed Pharaoh from Joseph's era, centuries before the Pharaoh who later enslaved Israel in Exodus. Genesis never names this king, and many pharaohs reigned across Egypt's long history, so this is a different person. The two stories are linked by theme, not by being the same individual.

Before appearing before Pharaoh, Joseph is shaved and given new clothes, reflecting Egyptian customs of grooming and dress, which differed from Hebrew practice. This detail shows Joseph adapting to the expectations of the Egyptian court just as he is pulled straight from the dungeon. It also marks a visible transition from prisoner to someone fit to stand before the king.