The organization of the book of Isaiah
Chap. 1 – 23 / 28 – 39 Isaiah 770 – 685 Jerusalem
Chap. 40 – 66 II. Isaiah c. 550 Babylon
Chap. 56 – 66 III. Isaiah c. 530 Jerusalem
Chap. 24 – 27 Isaiah Apocalypse 4. – 2. Is. Jerusalem