Zac Poonen emphasizes the transformative power of the Holy Spirit in the New Covenant, contrasting it with the Old Covenant's superficial ministry. He illustrates that while the Old Covenant allowed for external blessings, it left the inner self unchanged, leading to spiritual shallowness and moral failures among leaders. Poonen stresses that true ministry flows from a heart filled with the Holy Spirit, producing the aroma of Christ's humility and love, rather than mere outward displays of power. He calls for a deeper understanding of worship and the necessity of being filled with the Spirit to genuinely reflect Christ's character in our lives. Ultimately, he urges believers to seek a well of living water within, which sustains joy and peace regardless of external circumstances.

G. Campbell Morgan addresses the contrasting movements in society regarding materialism and the search for spirituality, highlighting how materialistic views have permeated life outside the Church, leading many to live in practical atheism. He notes a significant revolt against materialism, evidenced by the rise of spiritualism and theosophy, yet warns against the extremes of denying matter altogether. Within the Church, a wave of rationalism threatens spiritual vitality, but there is also a revival of interest in the Holy Spirit's ministry, which is essential for true transformation. Morgan emphasizes the importance of grounding spiritual truths in Scripture to avoid the pitfalls of legalism and misinterpretation. He calls for a return to the Word of God as the ultimate guide to understanding the Spirit's work and the spiritual realm.