CNY Catholic Calendar
St. Michael the Archangel, defend us in battle. Be our protection against the wickedness and snares of the devil. May God rebuke him, we humbly pray, and do thou, O Prince of the heavenly host, cast into hell satan and all the evil spirits who prowl about the world seeking the ruin of souls. Amen.
The prayer to St. Michael was composed by Pope Leo XIII after he had a vision. Read the explanation in the highlighted link.
Pray the St. Michael Chaplet with Mother Angelica or use the print copy at EWTN.