David Wilkerson emphasizes the importance of recognizing the sufficiency provided by God for believers, highlighting that many experience despair due to a lack of faith in God's provisions. He shares a personal experience with Kathryn Kuhlman, who reminded him that true ministry under the Holy Spirit should leave one feeling empowered rather than exhausted. Wilkerson encourages believers to draw from the 'bank of heaven' and to understand that God's grace increases in times of weakness, allowing them to abound in every good work. He stresses that faith is key to accessing this divine strength and sufficiency.

E.M. Bounds emphasizes the profound necessity of divine sufficiency in preaching, illustrating that true ministry is empowered by God and the Holy Spirit. He warns against the dangers of non-spiritual preaching, which may appear eloquent but lacks the life-giving energy of the Spirit. Bounds highlights that a preacher must experience a deep surrender to God, recognizing their own powerlessness to effectively convey God's message. The essence of life-giving preaching is rooted in the preacher's inner transformation and crucifixion of self, allowing God's power to flow through them. Ultimately, Bounds calls for a ministry that is not only knowledgeable but also spiritually vibrant and alive.