Human Life International has distributed millions of these prayer cards around the world! Commonly said following Holy Mass, HLI encourages the faithful to pray this prayer everyday for the conversion of abortionists to halt the evil practice of abortion worldwide.
The prayer reads:
Saint 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, by the power of God, cast into hell Satan and all the evil spirits who prowl about the world seeking the ruin of souls. Amen.