DESCENDENT OF DAVID
According to Jewish sources, the Messiah will be born of human parents and possess normal physical attributes like other people. He will not be a demi-god, nor will he possess supernatural qualities.
The Messiah must be descended on his father's side from King David (see Genesis 49:10 and Isaiah 11:1). According to the Christian claim that Jesus was the product of a virgin birth, he had no father -- and thus could not have possibly fulfilled the messianic requirement of being descended on his father's side from King David!.