This commentary follows a consistent course in the critical approach which it adopts. Over a decade I have arrived at a view which differs fundamentally from previous literary assessments of the book of Isaiah. My understanding of the so called memorial of the prophet Isaiah on his activity at the time of the Syro Ephraimite war (6.1-9.6) is fundamental in this respect. Once one allows that this is a composition aimed at coming to terms with the exile in the sixth century, the rest follows almost automatically. Perhaps, therefore, I may be excused for having paid special attention to the elucidation of these chapters.