assalamu alaikum,
i was actually reading up on the claim that the quran correctly clls the pharaoh during the time of joseph king, and later calls him pharaoh etc.
only answering islam makes this claim and i didnt really know a response, so if you could help out that would be great:
M S M Saifullah and Elias Kareem attempt to legitimize the Qur'an and discredit the Bible based on the fact that the early Kings of Egypt were not given the title of Pharaoh. The authors claim that the Bible makes a mistake when it refers to the Kings of Egypt (prior to the 18th Dynasty) as Pharaoh. This arguments confuses questions of fact with questions of relevance. Incidentally, the Qur'an is also guilty of the same error, if it is indeed an error.
Sura 50: 12-13
Before them was denied (the Hereafter) by the People of Noah, the Companions of the Rass, the Thamud, The 'Ad, Pharaoh, the brethren of Lut,
Therefore, according to the Qur'an, the King of Egypt was called Pharaoh (since this list appears to be in chronological order) at, or before the time of the "brethren of Lot". Lot and Abraham lived in the same time period since Lot was his nephew! In any event, these "brethren" lived before Joseph.
jazakallah khair.