Some believe the numinous "captain of the host of the Lord" encountered by Joshua in the early days of his campaigns in the Promised Land is Michael the Archangel. This unnamed heavenly messenger is of supernatural and holy origin, and likely sent by God. There is some controversy about this, however. In other places in the Bible, angels do not accept the worship of humans; the willingness of this person to accept Joshua's worship implies that he was divine (e.g., a theophany of God). However, it's not clear whether the angel was the subject of Joshua's worship or merely instigated worship of God.
In the War of the Sons of Light Against the Sons of Darkness, Michael is described as the prince of light, leading forces of God against the darkness of evil, who is led by Belial. He is described as the "viceroy of heaven", a title that is said to have formerly belonged to the Morning Star.
Michael is designated in the Book of Enoch, as "the prince of Israel". Enoch 9:1 mentions Michael, along with Gabriel, Raphael, Uriel and Suriel. Enoch 20:5 speaks of Michael presiding over human virtue in order to command nations; in 24:4-10 Enoch, before the Tree of Life/Mercy, explains to Michael that he should not touch it, for it is for those who are 'elect' after the day of Judgement; Enoch 40:8 says that Michael is patient and merciful; and Enoch 70:11-16 shows that Michael, Gabriel, Raphael and Phanuel always 'escort' Yahweh whenever he leaves his throne.
According to some Christian theologians, Holy Michael may appear in Scripture where his name is not mentioned: for example, the cherub who stood at the gate of Paradise, "to keep the way of the tree of life"; the angel through whom God published the Decalogue for his chosen people; the angel who stood in the way against Balaam; and the angel who routed the army of Sennacherib.
In Normandy, Michael is the patron of mariners in his famous sanctuary at Mont-Saint-Michel in the Diocese of Coutances. He is said to have appeared there, in 708, to St. Aubert, Bishop of Avranches.
In Germany, after its evangelization, Michael replaced the pagan god Wotan for the Christians, to whom many mountains were sacred; hence the numerous mountain chapels of Holy Michael all over Germany.