The Jahwist, also referred to as the Jehovist, Yahwist, or simply as J, is one of the four major sources of the Torah postulated by the Documentary Hypothesis (DH). It is the oldest source, whose narratives make up half of Genesis and the first half of Exodus, plus fragments of Numbers. J describes a human-like God, called Yahweh (or rather YHWH) throughout, and has a special interest in the territory of the Kingdom of Judah and individuals connected with its history. J is believed to have been composed in c 950 BC and later incorporated into the Torah (c 400 BC).