In Judaism, angels (Hebrew: מַלְאָךְ‎ mal’akh, plural: מלאכים mal’akhim) are supernatural beings that appear throughout the Tanakh (Hebrew Bible), rabbinic literature, apocrypha and pseudepigrapha, and traditional Jewish liturgy. They are categorized in different hierarchies and act as messengers of God, angelic envoys, or general agents of God.