Celestial Beings
Apparently different than angels, these beings are mentioned in 2 Pet 2.10-11 as beings which angels are unwilling to slander in the presence of the Lord.
Peter 2:10-11 (ESV)
^10 and especially those who indulge in the lust of defiling passion and despise authority. Bold and willful, they do not tremble as they blaspheme the glorious ones,
^11 whereas angels, though greater in might and power, do not pronounce a blasphemous judgment against them before the Lord.