No, it's a scheme for the Jews (pharisees) to make themselves and others think they have some Power over us (they don't). They rely on your ignorance not to learn Ancient History (the Gospel).
Noah was Hebrew. Even if we go by what you're saying, that Noah is Jewish, that means we are all Jewish since we all descend from him, and there are no Chosen Ones, because that would mean we are all (everyone currently on Earth) the Chosen Ones.
God came in the flesh not just as Jesus. Read Genesis again. He came as 3 warriors on horseback to visit Abraham, and God came in the flesh to wrestle with Jacob.