Isaiah Through The Centuries -

Scholars generally divide the book into three sections: "First Isaiah" (chapters 1–39), "Second Isaiah" (40–55), and "Third Isaiah" (56–66), reflecting different historical periods from the Assyrian threat to the post-exilic return from Babylon. Book of Isaiah | Guide with Key Information and Resources

Isaiah’s message began in the 8th century BCE during the reigns of Judean kings Uzziah, Jotham, Ahaz, and Hezekiah. Isaiah Through the Centuries

Central to his vision was the "Holiness of God" and the dual message of inevitable judgment followed by a purifying restoration. Scholars generally divide the book into three sections: