Gog and Magog (; Hebrew: גּוֹג וּמָגוֹג‎, Gōg ū-Māgōg; Syriac: ܓܘܓ ܘܡܓܘܓ‎; Arabic: يَأْجُوجُ وَمَأْجُوجُ‎, Yaʾjūj wa-Maʾjūj) appear in the Hebrew Bible, Christian Bible, and Quran as individuals, tribes, or lands. In Ezekiel 38, Gog is an individual and Magog is his land; in Genesis 10, Magog is a man, but no Gog is mentioned; and centuries later Jewish tradition changed Ezekiel's "Gog from Magog" into "Gog and Magog", which is the form in which they appear in the Christian New Testament's Book of Revelation, although there they are peoples rather than individuals.The Gog prophecy is meant to be fulfilled at the approach of what is called the "end of days", but not necessarily the end of the world. Jewish eschatology viewed Gog and Magog as enemies to be defeated by the Messiah, which would usher in the age of the Messiah.