Isaiah 56:1-8 gentiles are grafted following Torah.
Isaiah 59:20 -
The Redeemer will come to Zion,
to those in Jacob who turn from transgression," declares the LORD.
So repentance first, Messiah afterwards.
So you prove my point. Neither Isaiah 53 nor Yom Kippur have anything to do with you, nor the new covenant which applies to the houses of Israel and Judah.
So much for the salvation you speak of - Christians are still dying because of their sins, unredeemed.
Your Jesus said listen to the Rabbis. They sit in Moses' seat. You better start listening.... rotfl