The author of the passages of the Old Testament, esp. those of the Hexateuch, in which God is styled Yahweh, or Jehovah; the author of the Yahwistic, or Jehovistic, Prophetic Document (J); also, the document itself.

First of the four sources of the Pentateuch, the Yahwist dates to ca. 950 BCE and may have been the court theologian for the Davidic Monarch