God's Word is one piece of the child of God's armor, the sword of the Spirit which is sharper than any "two-edged sword". ~ (Blogger quote: No spiritual discipline is more important than the intake of God's Word. Nothing can substitute for it. There is simply no healthy Christian life apart from a diet of the milk and the meat of Scripture.)
Traditional Prayer to St. Michael the Archangel for protection against Satan and all evil spirits "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 Divine power of God, cast into hell Satan and all the evil spirits who wander throughout the world seeking the ruin of souls. Amen."
Ephesians 6:10 A final word: Be strong in the Lord and in his mighty power. 11 Put on all of God’s armor so that you will be able to stand firm against all strategies of the devil. 12 For we are not fighting against flesh-and-blood enemies, but against evil rulers and authorities of the unseen world, against mighty powers in this dark world, and against evil spirits in the heavenly places.