Who is Michael the Archangel in the Bible? Michael seems to be an important individual in heaven. Archangel means "chief of the angels"  He is the leader of the angels. The name Michael has an important meaning as well, it means: "(one) who is like God.  As the Archangel of battle and defender of Heaven, Michael is said to be the Patron Saint. Michael the Great Archangel and Defender of the Faith.