What do the Rabbis say about Isaiah 53? (English)

How come modern Judaism disputes the application of Isaiah 53 to be a Messianic passage? Why do the Rabbis think that Isaiah 53 is about Israel and not about the Messiah? Did you know that Isaiah 53 is not a part of the Haftora readings during the yearly cycle of the Torah? Judaism of old and many early 19th and 20th century Rabbis believe that Isaiah was talking about a Messiah but still they do not believe that Yahshua is the Messiah. However, Aramaic commentaries of the Torah and the Prophets used in the Synagogues before the birth of Yahshua knew that this chapter was about the future messiah. Join me in the search for the truth about what the Old Rabbis believe this chapter was really in regards to.