A.W. Tozer emphasizes the importance of recognizing the reality of fear in our lives, arguing against the notion that there is nothing to fear. He critiques the 'fear-not' philosophy that misinterprets Scripture, asserting that it is irresponsible to suggest that believers can simply dismiss their fears. Tozer points out that the world is filled with dangers, including the potential harm from humanity itself, and he highlights Jesus' teaching to fear God, who has ultimate authority over life and death. The sermon calls for a proper understanding of fear, urging believers to direct their reverence towards God rather than dismissing their fears altogether.