Saint Michael, 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, thrust into hell Satan and all the other evil spirits who prowl about the world
seeking the ruin of souls. Amen.

-- Pope Leo XIII (1904)