The Chayot or Hayyoth (Hebrew חַיּוֹת "living beings") are a class of Merkabah, or Jewish Mystical Angel, reported in Ezekiel's vision of the Merkabah and its surrounding angels as recorded in the first chapter of the Book of Ezekiel describing Ezekiel's vision by the river Chebar.
Chayot are ranked first on Maimonides' Jewish angelic hierarchy.
In Judaism the Chayot are considered angels of fire, who hold up the throne of God and the earth itself.[1] (and would therefore be on the same level as the Christian Seraphim) and residing in the Seventh heaven.