In the nineteenth episode of "Defenses Against Deception," Duane teaches that the fifth defense against deception is to be a "doer of the word" and not just a "hearer only." This means actively living out and applying the teachings of the Bible, rather than simply listening or reading without putting them into practice (James 1:21-25).

If you hear or read the Bible without mixing faith and obedience, it will not lead to transformation in your life. Someone who hears the word but does not act upon it is like a person who looks in a mirror, sees their reflection, but immediately forgets what they look like when they walk away.

True faith requires doing "the work" by living out the teachings of Jesus and the principles found in God's Word. This obedience and application of Scripture is a vital safeguard against deception, helping believers stay grounded in the "simplicity of Jesus" rather than being led astray.