Isaiah comes from the Hebrew phrase “yesha’yahu,” meaning “God saves.” It was the name of an Old Testament prophet, whose words are preserved in the biblical Book of Isaiah. The prophet Isaiah is revered by Jews, Christians, and Muslims. Isaiah was best known as the Hebrew prophet who predicted the coming of Jesus Christ to salvage mankind from sin. The book outlines Israel and the nations’ coming judgment while pointing to the future hope of a new covenant and the coming Messiah. The book of Isaiah outlines Israel and the nations’ coming judgment while pointing to the future hope of a new covenant and the coming Messiah.
https://bibleproject.com/explore/video/isaiah-1-39/
Isaiah speaks out against corrupt leaders and for the disadvantaged, and roots righteousness in God’s holiness rather than in Israel’s covenant. Isaiah was one of the most popular works among Jews in the Second Temple period (c. 515 BCE – 70 CE).
The Book of Isaiah, comprising 66 chapters, is one of the most profound theological and literarily expressive works in the Bible. Compiled over a period of about two centuries (the latter half of the 8th to the latter half of the 6th century BCE), the Book of Isaiah is generally divided by scholars into two (sometimes three) major sections, which are called First Isaiah (chapters 1–39), Deutero-Isaiah (chapters 40–55 or 40–66), and—if the second section is subdivided—Trito-Isaiah (chapters 56–66).
https://insight.org/broadcasts/player/?bid=1274&ga=bible_pages
