Contradiction with Genesis 25:7-8
These verses state that Abraham died at a good old age, and being full of years. This contradicts Genesis 50:23 indirectly by showcasing a different narrative style about lifespans and blessings over generations not explicitly focused on Joseph's lineage.
Genesis 25:7-8: And these [are] the days of the years of Abraham's life which he lived, an hundred threescore and fifteen years.
Contradiction with Exodus 1:8
It mentions a new king over Egypt, who did not know Joseph, which contradicts the lasting impact of Joseph's legacy implied by interactions with multiple generations.
Exodus 1:8: Now there arose up a new king over Egypt, which knew not Joseph.