After what you pasted, he continues to demonstrate that neither Moses nor Abraham used the term Jew, and Adam had no religion at all. Christianity, don't know what it was or where it came from, Judiasm, same thing, fortunately we've the Koran for guidance, ending with
"Say (O Muslims): We believe in Allah and that which is revealed unto Us and that which was revealed unto Abraham, and Ishmael, and Isaac, and Jacob and the sons of Jacob, and that which Moses and Jesus received, and that which the Prophets received from their Lord. We make no distinction between any of them, and unto Him we have surrendered (literally: "we are Muslims")." The noble Qur'an, al-Bakarah(2):136
Kind of a Muslim's for Jews and Christians thing.