David Wilkerson emphasizes the importance of the motive behind our obedience to God, arguing that if our intentions are not pure, our actions will be tainted. He points out that many Christians obey out of fear of punishment rather than a genuine desire to please God, contrasting this with Jesus' example of obedience rooted in love and a desire to fulfill the Father's will. Wilkerson encourages believers to adopt the same attitude as Christ, seeking to understand and fulfill God's desires, thus building their lives on a solid foundation of love and obedience.