The book of the prophet Isaiah was handed to him. He opened the book, and found the place where it was written,
, that it contained the prophetic lesson for the day. In the calendar of modern Jews, the lessons from Isaiah run parallel with those from Deuteronomy. The chapter which He read stands as the second lesson for the day of Atonement. We cannot prove that the existing order obtained in the time of our Lord’s ministry, but everything in Judaism rests mainly on old traditions; and there is therefore nothing extravagant in the belief that it was on the day of Atonement that the great Atoner thus struck what was the key-note of His whole work. - Ellicott