Well, I can assure you that if you bother to read Isaiah 53 in context, it is not talking about Jesus at all. The vast majority of Rabbi's don't consider that passage messanic. The writer of Isaiah 53 says exactly who the servant of the Lord is. That is the nation of Israel.
Note: Israel is called 'JACOB' traditionally.
Chapter 41:8 But you, Israel My servant, Jacob whom I have chosen, the seed of Abraham, who loved Me, 9 Whom I grasped from the ends of the earth, and from its nobles I called you, and I said to you, "You are My servant
Chapter 44:1 And now, hearken, Jacob My servant, and Israel whom I have chosen. 2 So said the Lord your Maker, and He Who formed you from the womb shall aid you. Fear not, My servant Jacob, and Jeshurun whom I have chosen. ... 21 Remember these, O Jacob; and Israel, for you are My servant; I formed you that you be a servant to Me, Israel, do not forget Me.
Chapter 45:4 For the sake of My servant Jacob, and Israel My chosen one, and I called to you (i.e. Cyrus) by your name;
Chapter 48:20 Leave Babylon, flee from the Chaldeans; with a voice of singing declare, tell this, publicize it to the end of the earth; say, "The Lord has redeemed His servant Jacob."
Chapter 49:3 And He said to me, "You are My servant, Israel, about whom I will boast."
So, repeatedly, just before Chapter 53, the servent is identified as Israel.