Michael is mentioned in the book of Daniel, in Jude, and in Revelation. In Daniel, Michael is the angelic helper of Israel who leads the battle against the forces of evil. In Revelation, Michael and his angels fight against Satan and defeat him and his evil angels, driving them out of heaven. Their victory is made possible by Christ's own victory over Satan through His death on the cross and resurrection. This victory over sin, death, and the devil is now ours by grace through faith in Jesus Christ.