from Sumer came Egypt who carried their traditions and teachings and brought them up a notch;
Its not about the civilizations that had the truth written down in papyrus or stone; its about the soul that evolved enough to UNDERSTAND THEM
Moses came out from Egypt (his ego) and Israel the people come out of their first exile or diaspora:
first they were put in Egypt through Joseph, remember him?
Joseph the quintessential Moshiach figure other than David represents the inner Messiah of the Jew while they are in exile.
when he is confronted with his brothers who did the dirty deed, Joseph says you meant it for evil but God meant it for good:
showing what? Exile doesn't always mean bad things for a people: The good news is that this thing you did not only saved your life in the end but the life of all of Egypt, (the nations)