After a certain vision of Daniel, one was sent by God to explain to him the significance of it, yet that one had been delayed by the prince of the kingdom of Persia; but, said he to Daniel, "Michael, one of the chief princes, came to help me." And before departing, he told him, "there is none that holdeth with me against these [the prince of Persia and the prince of Greece], but Michael your prince." (see Daniel 10:1-21, with Michael's name mentioned in vs.13,21.) And in 12:1, he is mentioned again by name, and described as "the great prince who standeth for the children of thy people" - Daniel's people, the holy ones of the Jews.

Next, in the New Testament, in Jude 9, he is called "Michael the archangel" (that is, the highest angel), and describes as having contended with the devil and "disputed about the body of Moses." And, finally, in Revelation 12;7-9, we read: "And there was war in heaven: Michael and his angels going forth to war with the dragon; and the dragon warred and his angels; and they prevailed not, neither was their place found any more in heaven. And the dragon was cast down, the old serpent, he that is called the Devil and, the deceiver of the whole world; he was cast down to the earth, and his angels were cast down with him." All this was seen by John in a vision, while on the Isle of Patmos.