We often refer to these Angels as Guardian Angels, Divine Messenger, Emissaries of Light, Bestowers of Grace or Bringers of Miracles. The Divine Angels are the inhabitants of the Nine Angelic Choirs of the Tree of Life. A good metaphor by Omraam Michael Aivanhov, an illuminated master, is that of a transformer: the Angels would represent an electrical device that decreases a high-voltage source (Divinity) so that it can be plugged into a low-voltage receptor (humans). Conversely, when we invoke, pray or appeal to the Divine, the Angels serve as “amplifiers” to transmit our small and finite communication to the vast and infinite Divine.
The Guardian Angel concept is clearly present in the Old Testament, and its development is well marked. The Old Testament conceived of God’s Angels as his ministers who carried out his behests, and who were at times given special commissions, regarding men and mundane affairs.
In Genesis 18-19, Angels not only act as the executors of God’s wrath against the cities of the plain, but they deliver Lot from danger; in Exodus 32:34, God says to Moses: “my Angel shall go before thee.” At a much later period we have the story of Tobias, which might serve for a commentary on the words of Psalm 91:11: “For he will command his Angels concerning you to guard you in all your ways;” (Cf. Psalm 33:8 and 34:5)
The belief that Angels can be guides and intercessors for men can be found in Job 33:23-6, and in the Daniel 10:13 Angels seem to be assigned to certain countries. In this latter case, the “prince of the kingdom of Persia” contends with Gabriel. The same verse mentions “Michael, one of the chief princes”.