This can be stated in active form. Alternate translation: "Jesus fulfilled the prophecy that the prophet Isaiah had spoken to the people ofIsrael" (See: [[rc://en/ta/man/translate/figs-activepassive]])
Matthew is quoting the prophet Isaiah. These two phrases mean basically the same thing and emphasize that he healed all of our diseases. Alternate translation: "healed those who were sick and made them well" (See: [[rc://en/ta/man/translate/figs-parallelism]])