Rabbi Moses the Darshan on the book of Isaiah, my Jewish friend

Rabbi Moses the Darshan (the Preacher) (11th Century) wrote: "God hath the beginning made a covenant with the Messiah and told him, 'My righteous Messiah, those who are entrusted to you, their sins will bring you into a heavy yoke and your ears will hear great shame; your mouth will taste bitterness and your tongue will cleave to the roof of your mouth and your soul will be weakened in grief and sighing. Are you satisfied with this?' And he answered, 'I joyfully accept all these agonies in order that not one of Israel should be lost.' Immediately, the Messiah accepted all agonies with love, as it is written in Isaiah 53:7, He was oppressed and he was afflicted."