The Book of Isaiah was likely written over a long period, roughly 739 to 681 BCE , during the ministry of the prophet Isaiah in Judah. Some scholars also argue that later sections were edited or expanded by later writers, so the book may reflect multiple stages of composition.

Quick Scoop

  • Traditional view: Isaiah the prophet wrote the book during the late 8th and early 7th centuries BCE.
  • Common scholarly view: the book took shape in stages, with material added or compiled over time.
  • Practical answer: if you just want the simplest date, late 700s BCE is the best short answer.

Why the date varies

Isaiah covers a wide historical span, from the Assyrian crisis in Judah to later postexilic themes, which is why many scholars think it was not written all at once. That said, many Bible-study sources still date the core prophetic work to Isaiah’s lifetime, especially between 739 and 681 BCE.

If you want, I can also give you a one-sentence summary , a scholarly vs. traditional view , or a chapter-by-chapter timeline.