David Wilkerson emphasizes the critical importance of guarding our hearts, as Proverbs 4:23 reminds us that the issues of life spring from within. He warns that despite our efforts in prayer, fasting, and studying Scripture, we can still be defiled by hidden heart issues that hinder the flow of Christ's life in us. Wilkerson identifies three main areas of concern: a defiled mouth, defiled ears, and defiled eyes, urging believers to be vigilant and allow the Holy Spirit to cleanse their hearts. He stresses that no one is beyond the need for self-examination and repentance to maintain a pure testimony. Ultimately, the sermon calls for a deeper awareness of how our inner state affects our outward life and relationship with God.

David Wilkerson emphasizes the critical need to address heart issues that hinder our growth in grace, as outlined by Paul in Ephesians 4:31. He explains that bitterness, wrath, anger, evil speaking, clamor, and malice must be removed from our lives to avoid grieving the Holy Spirit and becoming spiritually stagnant. Each of these issues represents a deeper struggle that requires intentional effort and repentance to overcome. Wilkerson encourages believers to engage in this process of growth, recognizing that it may take time and that failure is part of the journey. Ultimately, he calls for a commitment to healing and restoration in our relationships.