Do you believe that Messiah is coming twice?
No.
You chrstians don't seem to be able to understand one thing: Judaism is based on the Torah. The religion delivered by Moses at Mt. Sinai is the eternally true religion. There are no "innovations" of any kind after that point. All the prophets in the world cannot change that. Arguing about "messianic prophecies" is meaningless because the eternity of the Torah is not based on any prophecies. It is based on the Revelation of G-d at Sinai.
But never mind that. Now why don't you go back to screaming about how Torah was temporary because of Isaiah 53?
So David was not a prophet?
Also, Moses said that God would send a prophet like unto him. Moses came twice to Israel. First time rejected by both Israel and Gentile. The second time he came as the empowered deliverer.