Leo the Great

"Snatched from the powers of darkness" at such a great "price," and by so great a "mystery," and loosed from the chains of the ancient captivity, make sure, dearly beloved, that the devil does not destroy the integrity of your souls with any stratagem. Whatever is forced on you contrary to the Christian faith, whatever is presented to you contrary to the commandments of God, it comes from the deceptions of the one who tries with many wiles to divert you from eternal life, and, by seizing certain occasions of human weakness, leads careless and negligent souls again into his snares of death. Let all those reborn through water and the Holy Spirit consider the one whom they have renounced. -.