Avner Zarmi focuses on a supposed translation error and ignores the fact that the volume of the Book testifies to Jesus Christ as the Messiah. He ignores the prophecy in Daniel that absolutely establishes the day that the Messiah would proclaim Himself, and then be “cut off”. That prophecy has been fulfilled by Jesus Christ in His First Coming as the “Suffering Servant”. Isaiah 53 talks about both Comings, but Jesus only quoted the parts about the First Coming when he read in the Synagogue in Nazareth.
Is that enough elaboration for you? David Limbaugh has written several books about this from a lawyer’s point of view, which should be good for legalistic Jews to understand.
Too many people have been healed while relying on
“by his stripes we are healed” for it to not refer to Jesus.