Ophanim

One of the Dead Sea Scrolls (4Q405) construes them as angels; late sections of the Book of Enoch (61:10, 71:7) portray them as a class of celestial beings who (along with the Cherubim and Seraphim) never sleep, but guard the throne of God.

The kedusha section in the morning prayer (in the blessings preceding the recitation of the Shema) includes the phrase, "The ophanim and the holy living creatures with great uproar raise themselves up; facing the seraphim they offer praise, saying, 'Blessed be God's glory from His place."

[4] Ophanim are mentioned in the El Adon prayer, often sung by the congregation, as part of the traditional Shabbat morning service.

The name of the most glorious and exalted Thrones denotes that which is exempt from and untainted by any base and earthly thing, and the super mundane ascent up the steep.

[7][8] The Rosicrucian Cosmo-Conception refers that the "Lord of the Flame", the Hierarchy of Elohim astrologically assigned to Leo, are the Thrones (from the Old Testament description, "because of the brilliant luminosity of their bodies and their great spiritual powers.