St Michael the Archangel

Photo taken on the Hill of the Virgin, near the Basílica de Guadalupe, México.

Note RomanCandle made a reference: Paul Campbell, SJ, Discusses the Importance of Spiritual Freedom.
The Saint Michael Prayer

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