And now, concerning His words: “And He shall send His
angels....” By “angels” is meant those who, reinforced by the power of the
spirit, have consumed, with the fire of the love of God, all human traits and
limitations, and have clothed themselves with the attributes of the most
exalted Beings… And… inasmuch as these holy beings have sanctified themselves
from every human limitation, have become endowed with the attributes of the
spiritual, and have been adorned with the noble traits of the blessed, they
therefore have been designated as “angels.”
- Baha'u'llah (The Kitab-i-Iqan)