Spiritual warfare is, then, first of all, a matter of the heart, that is, it is a matter of remaining morally free of demonic contamination. Such contamination we call sin. Exorcists will tell us that the primary way to guard against extraordinary demonic influence is to resist the ordinary one that takes the form of temptation. For this the “armor of God,” consists in the faith, prayer and the sacraments. More often than not, if we are living a faith-filled, sacramental life we will be protected from evil.
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