According to Jewish tradition, Isaiah was the prophet killed by being sawn in half. The Hebrew Bible does not describe Isaiah’s death, but later rabbinic tradition connects his martyrdom with King Manasseh of Judah.
In the traditional account, Isaiah fled from Manasseh and hid inside a cedar tree. The king ordered the tree to be sawn apart, and Isaiah died when the saw reached him. One version links the punishment to Isaiah’s statement that he lived among a people of unclean lips; another says his presence was betrayed by the fringe of his garment.
The story is associated with passages in the Talmud and Jerusalem Talmud, especially Yevamot 49b and a discussion in Sanhedrin. It later circulated beyond Jewish literature, including Christian accounts of Isaiah’s martyrdom.
This tradition should not be confused with the biblical narrative itself. Isaiah’s prophetic career is central to the Book of Isaiah, but the canonical text gives no detailed account of how he died. The sawing story belongs to later interpretation and tradition, not to the book’s historical narrative.