In heaven there are many ranks (or choirs) of angelic beings, and various sources have compiled their own hierarchies of angels. The Old Testament refers to princes, sons of God, holy ones,watchers, Angels, Archangels, Seraphim and Cherubim. St Paul writes in the New Testament of principalities, thrones, might and dominations and powers, while Pope St Gregory I (c.540-604 CE) stated that there were nine ranks of angels in Heaven - the five from St Paul's list, as well as Angels, Archangels, Cherubim and Seraphim. Read more to help you decide do angels exist and how they can really help you