Genesis 42:23, What language was Joseph speaking and why?

Question: In this vese does what is saying that Jose;ph spoke to them thru a interpreter, What language was Joseph speaking and why? Gen 42:23 But they did not know that Joseph understood [them], for he spoke to them through an interpreter. Answer: Joseph was speaking the language of the Egyptians. He had been in Egypt for about 22 years by this time so he knew the language well. Genesis 42:5 indicates that there were many people going to Egypt to buy food, so the interpreter was there to translate for all the different nations that came. -PJ