The word Cuvântul '''angelînger''' means înseamnă "messengermesanger" and this word expresses the nature of şi acest cuvânt exprimă natura serviciului angelic service to the human racefăcut oamenilor. Angels are also referred to as "bodiless Powers of Heaven". Angels are organized into several orders, or Angelic Choirs. The most influential of these classifications was that put forward by pseudo-Dionysius the Areopagite (not to be confused with [[Dionysius the Areopagite]], who was baptized by Saint [[Apostle Paul|Paul]] and lived in the first century, and from whom pseudo-Dionysius took his name) in the fourth or fifth century in his book ''The Celestial Hierarchy''.