Contradiction with Genesis 45:1
This verse describes Joseph revealing himself to his brothers in Egypt, emphasizing it was a personal encounter without further immediate revelation to Pharaoh before this event.
Genesis 45:1: Then Joseph could not refrain himself before all them that stood by him; and he cried, Cause every man to go out from me. And there stood no man with him, while Joseph made himself known unto his brethren.
Contradiction with Genesis 42:8-9
Joseph recognized his brothers during their first visit, but it was not until later (as recounted in Genesis 45) that he made himself known to them, offering a chronological discrepancy with Acts 7:13 which suggests it happened at the second encounter.
Genesis 42:8-9: And Joseph knew his brethren, but they knew not him.