Why is Michael the Archangel a saint?

“Saint” indicates that one is holy, whether a human or an angel. The term is used in many ways. St. Paul speaks in his letters of the just as “saints.” The Church speaks of canonized saints, those whose heroic virtue has been demonstrated and whose presence with God has been confirmed by their miraculous intercession. As St. Michael is one of the holy angels, he is a saint in both the general sense of “just,” and in the specific sense of being recognized by the Church as eternally with God. This is also true of St. Gabriel and St. Raphael.