Archangels are mentioned throughout sacred Scripture in their unique role as God’s messengers to people at critical times in the salvation process (Jude 9; 1 Thess. 4:16; Dan. 10:13, 21; 12:1). The archangel Michael is introduced as the leader of the faithful angels in their struggle against the rebel angels led by Lucifer, or Satan, who made war in heaven against the will of God (Rev. 12:7-9).
St. Michael, whose Hebrew name translates into English as “Who is like God?”, is the champion of the faithful in their strife with the powers of evil. All throughout history, he is the special protector of those who love Jesus Christ. He has guarded the chosen people of Israel, and will defend God’s holy Church against the battle of the Antichrist.
In a vision, Pope Leo XIII was shown the fearful battle to be waged between Satan and St. Michael over the Church of the future. He composed the following powerful prayer, which you may use as a defense against Satan and all evil spirits:
St. Michael the Archangel, defend us in battle; be our safeguard against the wickedness and snares of the devil. May God rebuke him, we humbly pray, and do Thou, O Prince of the Heavenly Host, by the power of God, cast into hell, Satan and the other evil spirits who prowl through the world, seeking the ruin of souls. Amen.
The Church has set aside September 29th to celebrate the holy archangels Michael, Gabriel, and Raphael.