J.R. Miller emphasizes the secret of gladness in the Christian life, asserting that true joy is not dependent on circumstances but is rooted in God's love and grace. He explains that while Christians will face trials and sorrows, their joy can remain unshaken, as it is derived from a deep relationship with God. Miller encourages believers to cultivate a spirit of gladness through gratitude, a happy home, and a good conscience, while also recognizing the beauty of the world around them. He concludes that the essence of Christian gladness is a learned response to life’s challenges, reflecting the light of Christ even in darkness.

David Wilkerson emphasizes the importance of serving the Lord with joy and gladness, rooted in the assurance of His protection over His children. He illustrates how biblical figures like Joshua, Caleb, and the three Hebrew men maintained their joy and faith amidst trials, showcasing that true joy comes from total trust in God. Wilkerson encourages believers to rise above despair, reminding them that the joy of the Lord is their strength and that they have every reason to rejoice, regardless of their circumstances.

David Wilkerson emphasizes that God desires His people to serve Him with joy and gladness, rooted in the understanding of His tender love and ongoing work in their lives. He warns that a lack of joy in serving can lead to spiritual emptiness and vulnerability to life's challenges, as illustrated by Moses' warning to Israel. Wilkerson encourages believers to rejoice in what God has done and to maintain a spirit of gladness regardless of circumstances, citing various Psalms that call for joy and gladness in the Lord. He asserts that true joy is not dependent on external factors but is a constant state that flows from trusting in God's love and truth. Ultimately, he calls for a life filled with gladness that serves as a testimony to others.