A.W. Tozer emphasizes that accepting Christ requires not only an act of acceptance but also a continual rejection of all that opposes Him. He explains that Christianity is a balance of affirmation and denial, which must be practiced daily throughout a believer's life. Tozer warns against the misconception that one can live a wholly positive life without acknowledging the necessity of rejecting sin and worldly distractions. He likens this to the vital process of inhaling and exhaling, where both acceptance of Christ and rejection of contrary influences are essential for spiritual health. This truth is often overlooked by those focused solely on the positive aspects of evangelism.